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Posted By: davidcycleback

I hope this book doesn't lift my copyrighted and published research and writing on this subject. I published a booklet on news service photos (stamping charts, tags, etc), also available on my website (free to collectors and dealers to read and reference, not to publish in a book under their name) and gave complimentary copies to folks at MastroNet some years ago. No one at MastroNet knew that a UPI photo was modern until the booklet was published (UPI was formed in the 1950s), and had a vogue idea of which stamps showed a photo was old (ACME, International News, for examples). The information in the guide was not available before I published it. If MastroNet and the authors uses a large amount of material from my guide while taking credit for it, that would be an example of copyright infringment.