Comments on: The weight of chinese coins

By: Dragon Dollar

Dragon Dollar — Sun, 07 Oct 2018 18:15:58 +0000

You can try computing the density of your coin. You can use this formula: (weight of the coin) / (π x (half of the diameter of the coin)² x (thickness of the coin)). For exemple, an American Morgan dollar have a weight of 26.73 grams, diameter of 38.1mm and 2.4mm thickness, so when we apply the formula: 26.73 / (π x 19.05² x 2.4) we find a density of 9.77g/cm³. Chinese Silver Yuan were made to the same specifications than American Silver dollars, so if your coin has a density significantly different from 9.77g/cm³, it may be fake.

You can also send pictures of your coin for a free appraisal: http://www.dragondollar.com/coins/coin-appraisal-what-is-your-chinese-coin-worth/

By: Rein

Rein — Wed, 26 Sep 2018 05:58:08 +0000

Hi there I also have a dragon dollar coin and it is NOT magnetic on a silver magnet, what are some options you can give me apart from weight and diameter, that I can do to make sure that my coin is NOT FAKE but an authentic rare one

By: Dragon Dollar

Dragon Dollar — Sun, 08 Feb 2015 12:21:15 +0000

Hello, according to the Kuping (庫平) standard, one Tael was equal to 37.5 grams, one Mace to 3.75 grams and one Candareen to 0.375 gram. 7 Mace and 2 Candareens was therefore 27 grams.

By: Zeugitai

Zeugitai — Wed, 31 Dec 2014 17:26:43 +0000

I appreciate the valuable information you are providing here. I am, however, novice to the point of not even knowing how to convert terms like maces and candarins. What are the equivalents of these weight measures in modern or common terms? Thank you!

By: John Dunn

John Dunn — Wed, 23 Apr 2014 02:35:28 +0000

Thanks for this explanation, I’m working on a Kirin dollar, and your site has helped me start a judgement. Appreciate your hard work and willingness to share data.

By: karma dorji

karma dorji — Sun, 16 Mar 2014 05:47:16 +0000

i have a unique dragon coin of almost same as that of (Ku Ping Tael weighs 37.3 grams (1.2 oz), over 1 gram more) interested buyer can contact on mi Facebook of same email address. real face book name is (karmandoo dorji ).

thanks

By: Dragon Dollar

Dragon Dollar — Mon, 25 Nov 2013 18:51:39 +0000

Hello, I’m sorry but the person who sold you the coin was dishonnest. Genuine Chinese coins were made of Silver or Copper, and are never magnetic. Please ask for a refund! By the way, the “grandfather story” is unfortunately very common to the point of almost being a red flag.

By: Chris O

Chris O — Mon, 25 Nov 2013 17:19:13 +0000

I have many Tael, Silver Dollars and Trade Dollars from the Empire, Provence, Republic eras. They all respond to a magnet to varying degrees. I weighed one “Fat Boy” coin on my food scale and it was 22g (not troy but standard measure). I do believe they are true to their time period of ~1889 to 1927 or later because the person I bought them from said they were his grandfather’s coins which would be the same time frame. Do you think there is any chance they may be real or worth anything? If magnetism is not a sure way to test Chinese Empire era silver dollars for their authenticity then I will weigh the rest.

By: Dragon Dollar

Dragon Dollar — Fri, 30 Sep 2011 17:22:39 +0000

Unfortunately, the metal composition of Chinese coins varies greatly depending of the mint and year of production… Coins that were minted up to standard (imperial issues from Tianjin, for example) weighed 26.9 grams and used 0.9 Silver, for a 0.7783 troy ounce ASW (about 24.20 grams).

By: Kim

Kim — Tue, 13 Sep 2011 10:56:27 +0000

Very good reference for any China coins collector or amateur.

Would be good if the compositions of the coin materials can be provided, i.e. 100% silver or a mixture of whatever so that this can be part of identifying the “silver” Chinese coins.