See "BUY THE BEST" for records of postmarks, scans of covers with text, provenance, maintained over 45 years. BUY YOUR OWN DIGITAL PDF FILE
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(30 April 2020) Specialised collectors love to own the most important auction catalogues for their collecting areas. When it comes to the cancellations maybe a few items will get illustrated allowing provenance to be attributed when owned and included by you. Few records have survived showing the complete postmarks pages as owned by these famous collectors. The Osborn K3a page is now shared with all for the first time.
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