h***e
发帖数: 20195 | |
d*******i
发帖数: 2354 | 2 从技术上分析我不知道为什么它是假的.
我几乎买过这个卖家的东西...但是后来仔细看了下他的购买历史:10/19他收到了~50个
名为pd3366ft的卖家的好评.这个pd3366ft是中国卖家,你再看他的评价,里面是有问题
的.
【在 h***e 的大作中提到】
: 我仔细看了，不明白为什么是假的，请大牛帮着解释一下
: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=110301032687
|
d*******i
发帖数: 2354 | 3 在贴里卖家公布的内容看到有人说它是假的,说是temple面就可以看出假.
哪位大牛给分析下怎么就是假的了?
【在 h***e 的大作中提到】
: 我仔细看了，不明白为什么是假的，请大牛帮着解释一下
: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=110301032687
|
o*******g
发帖数: 1300 | 4 Compare the center of the stairs of the temple of heaven, it is the typical
pattern of fake silver panda.
http://www.pandaamerica.com/details.asp?item=723&grp=1&categ=1 |
o*******g
发帖数: 1300 | 5 This is a guide about the fake silver panda.
http://www.ngccoin.com/news/viewarticle.aspx?NewsletterNewsArticleID=35
That's the reason I only buy gold, platinum from ebay. Only buy silver of
trusted dealer. |
o*******g
发帖数: 1300 | 6 Pay attention to the 栏杆. The real on is so sharp and straight. The fake
ones are 东倒西歪.
Also, the seller is so stupid by saying his coin is 27g.
A troy ounce is 31.1. The first thing I got my coin is to weight it. The
plastic sleeve normally weighs 1-2 g depends on size. No way to weigh slab
though, but the chance to get a fake slab is relatively low.
If you don't have a similar coin, you'd better use a caliper to measure the
size to check it is not bigger.
The only time they can make fake gold c |
o*******g
发帖数: 1300 | 7 I did some quick research and found out that Tungsten has almost identical
density as Gold, and should be cheaper since each light bulb contains
probably a fraction of grams. It seems to be the only non-exotic metal equal
to or heavier than gold. It will be very difficult to tell from density if
you get a fake coin which is gold plated tungsten.
However, given the extremely high melting point of tungsten (4000K), I don't
see a small shop can melt and cast tungsten easily. As a comparison,
platin |
h***e
发帖数: 20195 | 8 admire, thanks
the
【在 o*******g 的大作中提到】
: Pay attention to the 栏杆. The real on is so sharp and straight. The fake
: ones are 东倒西歪.
: Also, the seller is so stupid by saying his coin is 27g.
: A troy ounce is 31.1. The first thing I got my coin is to weight it. The
: plastic sleeve normally weighs 1-2 g depends on size. No way to weigh slab
: though, but the chance to get a fake slab is relatively low.
: If you don't have a similar coin, you'd better use a caliper to measure the
: size to check it is not bigger.
: The only time they can make fake gold c
|
h***e
发帖数: 20195 | 9 好象还有一个类似的1984熊猫银，正常市场价格在美国EBAY应在最少600$以上，品相好
的还可以贵不少，一般列上去1-2天价格就会上几百，
便宜的银币一般没人伪造，但是我发现不少人卖熊猫镀银的，说是BULLION，有时候居
然还能卖个几十块
【在 o*******g 的大作中提到】
: This is a guide about the fake silver panda.
: http://www.ngccoin.com/news/viewarticle.aspx?NewsletterNewsArticleID=35
: That's the reason I only buy gold, platinum from ebay. Only buy silver of
: trusted dealer.
|
h***e
发帖数: 20195 | 10 yes, your are right
this one should be the real one
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=190261186218
typical
【在 o*******g 的大作中提到】
: Compare the center of the stairs of the temple of heaven, it is the typical
: pattern of fake silver panda.
: http://www.pandaamerica.com/details.asp?item=723&grp=1&categ=1
|
|
|
mb
发帖数: 153 | 11 写的不错
你说的slab是什么?
platinum曾经比gold便宜过？
the
【在 o*******g 的大作中提到】
: Pay attention to the 栏杆. The real on is so sharp and straight. The fake
: ones are 东倒西歪.
: Also, the seller is so stupid by saying his coin is 27g.
: A troy ounce is 31.1. The first thing I got my coin is to weight it. The
: plastic sleeve normally weighs 1-2 g depends on size. No way to weigh slab
: though, but the chance to get a fake slab is relatively low.
: If you don't have a similar coin, you'd better use a caliper to measure the
: size to check it is not bigger.
: The only time they can make fake gold c
|
mb
发帖数: 153 | 12 呵呵，纯从技术上讲，如果用铜钨或银钨合金伪造gold，用铅钨合金伪造plat，密度，
电阻都十分接近，你怎么办？我一直都觉得称重不是鉴别gold，plat的办法。
equal
if
't
you
【在 o*******g 的大作中提到】
: I did some quick research and found out that Tungsten has almost identical
: density as Gold, and should be cheaper since each light bulb contains
: probably a fraction of grams. It seems to be the only non-exotic metal equal
: to or heavier than gold. It will be very difficult to tell from density if
: you get a fake coin which is gold plated tungsten.
: However, given the extremely high melting point of tungsten (4000K), I don't
: see a small shop can melt and cast tungsten easily. As a comparison,
: platin
|
mb
发帖数: 153 | 13 相信下一批出来的假币就不存在这个问题。
所以作伪的信息不宜公开公布。骗子也在进步。
【在 o*******g 的大作中提到】
: This is a guide about the fake silver panda.
: http://www.ngccoin.com/news/viewarticle.aspx?NewsletterNewsArticleID=35
: That's the reason I only buy gold, platinum from ebay. Only buy silver of
: trusted dealer.
|
mb
发帖数: 153 | 14 $600?我看国内怎么才要￥3000?
【在 h***e 的大作中提到】
: 好象还有一个类似的1984熊猫银，正常市场价格在美国EBAY应在最少600$以上，品相好
: 的还可以贵不少，一般列上去1-2天价格就会上几百，
: 便宜的银币一般没人伪造，但是我发现不少人卖熊猫镀银的，说是BULLION，有时候居
: 然还能卖个几十块
|
o*******g
发帖数: 1300 | 15 Slab is the certified coin by PSGS, MGS or other 3rd party.
They use a sealed hard plastic container to protect the coin.
It looks like a small plastic board that's why collectors call them slabs.
I heard that there are fake slabs, too.
【在 mb 的大作中提到】
: 写的不错
: 你说的slab是什么?
: platinum曾经比gold便宜过？
:
: the
|
o*******g
发帖数: 1300 | 16 copper/silver are much lighter than gold.
If large copper/silver proportion is used, the weight will be light.
If smaller copper/silver proportion, the conductivity won't be good.
(I don't know how conductivity change with respect to alloy content though)
One way to detect silver is to blow it. This is the traditional way for
people to test silver dollar in the past. Due to the excellence resilience
of silver, you will hear a long lasting hum. I tried a big Ike dollar (In
nickel, and same size a
【在 mb 的大作中提到】
: 呵呵，纯从技术上讲，如果用铜钨或银钨合金伪造gold，用铅钨合金伪造plat，密度，
: 电阻都十分接近，你怎么办？我一直都觉得称重不是鉴别gold，plat的办法。
:
: equal
: if
: 't
: you
|
o*******g
发帖数: 1300 | 17 yes. Pt can be cheaper than gold, and it is very likely for this round of
recession, too.
Pt is more an industrial metal. Gold almost has none industrial use.
【在 mb 的大作中提到】
: 写的不错
: 你说的slab是什么?
: platinum曾经比gold便宜过？
:
: the
|
o*******g
发帖数: 1300 | 18 This is what bothers me.
I don't understand how 999 gold can grow copper spot.
http://cgi.ebay.com/1983-1-4-Oz-CHINA-PANDA-GOLD-999-GOLD-SMALL-SPOT-ON-REV_W0QQitemZ220299941824QQcmdZViewItem?hash=item220299941824&_trksid=p3286.c0.m14&_trkparms=66%3A2%7C65%3A10%7C39%3A1%7C240%3A1318
I have seen quite many pandas on ebay having this problem.
I'll avoid them for sure. Though this one seems to be from a reliable seller
. |
w*****u
发帖数: 268 | 19 http://lynncoins.com/brown-spotting-gold-coins.htm
here is the link to answer your question.
seller
【在 o*******g 的大作中提到】
: This is what bothers me.
: I don't understand how 999 gold can grow copper spot.
: http://cgi.ebay.com/1983-1-4-Oz-CHINA-PANDA-GOLD-999-GOLD-SMALL-SPOT-ON-REV_W0QQitemZ220299941824QQcmdZViewItem?hash=item220299941824&_trksid=p3286.c0.m14&_trkparms=66%3A2%7C65%3A10%7C39%3A1%7C240%3A1318
: I have seen quite many pandas on ebay having this problem.
: I'll avoid them for sure. Though this one seems to be from a reliable seller
: .
|
w*****u
发帖数: 268 | 20 here is another answer.
The spots are copper. They come from copper dust in lower grade mints that
mint PM's and copper in the same area- even using the same dies. China's
pandas are notorious for this defect The amount of copper is neglegable, so
it's no big deal as far as bullion coins are concerned.
seller
【在 o*******g 的大作中提到】
: This is what bothers me.
: I don't understand how 999 gold can grow copper spot.
: http://cgi.ebay.com/1983-1-4-Oz-CHINA-PANDA-GOLD-999-GOLD-SMALL-SPOT-ON-REV_W0QQitemZ220299941824QQcmdZViewItem?hash=item220299941824&_trksid=p3286.c0.m14&_trkparms=66%3A2%7C65%3A10%7C39%3A1%7C240%3A1318
: I have seen quite many pandas on ebay having this problem.
: I'll avoid them for sure. Though this one seems to be from a reliable seller
: .
|
|
|
o*******g
发帖数: 1300 | 21 I believe the coin is real. But we certainly will avoid this type of coins
for collection purpose, unless the price is very very good.
【在 w*****u 的大作中提到】
: http://lynncoins.com/brown-spotting-gold-coins.htm
: here is the link to answer your question.
:
: seller
|
w*****u
发帖数: 268 | 22 sadly, this is the "made-in-china" mark on our chinese panda coins.
【在 o*******g 的大作中提到】
: I believe the coin is real. But we certainly will avoid this type of coins
: for collection purpose, unless the price is very very good.
|
h*****w
发帖数: 8561 | 23 很简单,不要买这几年的银猫,假的太多,类似邮票那两个加字,即使被评级过也有可能是
假的. |
h***e
发帖数: 20195 | 24 最近价格跳水了，确实没600刀了，国内3000拿不下吧，应该最少3700-4000吧，淘宝看
到一个2850的，估计是假的
【在 mb 的大作中提到】
: $600?我看国内怎么才要￥3000?
|
h***e
发帖数: 20195 | 25 国内淘宝上价格也在跳水啊，一起看到83，84熊猫铜，要开价1300以上的，现在700都
有人卖，这里EBAY也成交一个总共100刀，以前怎么也得130-140以上
【在 mb 的大作中提到】
: $600?我看国内怎么才要￥3000?
|
m*****u
发帖数: 19562 | 26 大家都没钱了
【在 h***e 的大作中提到】
: 国内淘宝上价格也在跳水啊，一起看到83，84熊猫铜，要开价1300以上的，现在700都
: 有人卖，这里EBAY也成交一个总共100刀，以前怎么也得130-140以上
|
d*******i
发帖数: 2354 | 27 DEAL越来越少了
【在 m*****u 的大作中提到】
: 大家都没钱了
|
