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<p>[QUOTE=&quot;moreotherstuff, post: 303233, member: 56&quot;]I believe that this is a print that came off a press - some sort of rotary press.&nbsp; No idea how many copies were made.&nbsp; You would hope that, if it was a mistake, someone caught it.&nbsp; The process is capable of mass market production.</p><p><br /></p><p>The thing is that to come off a press, printing plates had to be prepared.&nbsp; It&#039;s my understanding that the most common form of color printing is a 4-color separation.&nbsp; The original art is photographed 4 times with different colored filters to produce 4 single color images of the art (densities throughout the image favoring the color of the filter - and that gets into really technical stuff).&nbsp; One plate is produced for each color and the print is generated by overlapping color after color as the paper passes through the press.</p><p><br /></p><p>Each of those single color images of the original art is a transparency (that&#039;s my understanding - if it&#039;s wrong, then all following is wrong).&nbsp; Because they are transparencies, the printing plates can be produced using either side of each transparency.&nbsp; If you use side &quot;a&quot; you get a properly oriented reproduction.&nbsp; If you use side &quot;b&quot; the image will be mirrored.&nbsp; </p><p><br /></p><p>In this instance, for whatever reason, I think they made the printing plates using the wrong side of each transparency.</p><p><br /></p><p>I don&#039;t think that an error of this type adds to the value - it may detract.</p><p><br /></p><p>It is possible that, for some purposes, the printer simply doesn&#039;t care.[/QUOTE]</p><p><br /></p>

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