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<p>[QUOTE=&quot;Insider, post: 8292253, member: 24314&quot;]Designer&#039;s initials are not &quot;secret.&quot;&nbsp; The &quot;Star of David&quot; hidden in the hair of a stamp is virtually unknown (so secret) but not an anti-counterfeiting device.&nbsp; The &quot;Super Bird&quot; on the quarter could be either done as a whimsy by man or a Mint &quot;artifact.&quot;&nbsp; I&#039;m wondering about marks put on coin hubs as a part of the design in order to defy counterfeiting.&nbsp; The 1875 Indian is a secret mark on one date.&nbsp; The 2 dot 2 Grant 50c was done to ID a Grant Star die with the star polished off.&nbsp; Hub marks such as the depression in the &quot;R&quot; on $10 Indians is more like a characteristic that MAY have been done as a secret mark on all genuine coins.&nbsp; Many coins have man-made &quot;dots&quot; that may be for one thing or another.&nbsp; Unfortunately when they appear in all sorts of places on 1921 Morgan dollars they argue against anything done for a specific purpose like the 1884 dot Morgan&#039;s whose purpose I don&#039;t know.[/QUOTE]</p><p><br /></p>

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