Has Any One Done A Specific Gravity Test On 1937 1938 Crown

To participate in the forum you must log in or register.

Author	Replies: 1 / Views: 1,870
shanew Pillar of the Community Australia 1041 Posts	Posted 02/15/2014 11:55 pm has any one done this test on our crowns I have been fooling around and cant get any were near or over 10 best was 9.7 I have done the test on 5 coins I got back a low of 8,7 8.9 9,3 9.7 9.7 each one tested 3 times there were 6 of those fake coins that gave me a specific gravity of over 9.1 each time might have to shoot up my crowns also they are fakes and I bought these from aust auction houses to am I doing it right Report this Post to the Staff

sel_69l Bedrock of the Community Australia 21788 Posts	Posted 02/16/2014 02:17 am Principle OK, but the technique could do with a bit of improvement. 1. Use a plastic container that is only just big enough to accommodate a fully submerged coin. 2. Use a scales that is most sensitively accurate in the weight range you are measuring. Remember the correct application of Archimedes' Principle: "When an object is wholly or partially immersed in a water, there is an apparent loss in weight, which is equal to the weight of water displaced". Edited by sel_69l 02/16/2014 02:21 am Report this Post to the Staff
	Replies: 1 / Views: 1,870

To participate in the forum you must log in or register.

All Forums Category: Australia, New Zealand, and South Pacific (Oceania) Coins and Currency Forums Forum: Coins, Bank Notes, and Paper Money: Australia, New Zealand, & South Pacific (Oceania)

Silver Gold Bull US is the United States leading bullion dealer. We deliver gold coins, gold bars, silver coins, silver bars and precious metals to your door. Order today!

The First Dollar, your premier source for bullion and rare coins. See our bullion list on the site and the coin inventory on ebay.

View Last 100 New Topics

View Last 100 Active Topics

Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Coin Community assumes no liability for errors. Copyright 2005 - 2026 Coin Community Family- all rights reserved worldwide. Use of any images or content on this website without prior written permission of Coin Community or the original lender is strictly prohibited.
Contact Us | Advertise Here | Privacy Policy / Terms of Use

Coin Community Forum

It took 0.19 seconds to rattle this change.