Message:

<p>[QUOTE=&quot;jgenn, post: 4422809, member: 78525&quot;]I saw this coin posted on another forum in a plastic case.&nbsp; Now that you have removed it from the case it is possible to do some further analysis.&nbsp; There are easy first steps to take with a coin that is supposed to be 90% silver.&nbsp; Is is magnetic and what is the weight in grams to two decimal places?</p><p><br /></p><p>The alternating circle and rectangle edge design was impressed on genuine Spanish colonial issues by a parallel edging mill that also upset the edge prior to being struck.&nbsp; The parallel edging mill will leave small sections of overlap of the design, typically one to three segments, in two places on exactly opposite sides of the coin.&nbsp; Many forgers are either not aware of this or expect that nobody will look too closely at the edge design, however some forgeries are made with parallel edging devices so this is not a perfect test.</p><p><br /></p><p>The surface marks are called chops and, if genuine, were placed there by Asian assayers to indicate that they passed their examinations for acceptance as silver of the appropriate measure.&nbsp; These coins were and continue to be faked.&nbsp; You should expect that a forger can easily fake a chop so these are in no way a guarantee of authenticity.[/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in