Kupersmit Bulgarian Stamps and Covers May 20th, 2015 - This is the Bulgaria collection formed by the late famous philatelist John E. duPont. This collection was never exhibited. The strength is in the stamps with the vast majority sewn onto a Karaivanoff certificate. Scans of the lots and their certificates are shown with each lot.
(via Philasearch.com : Stamps, Postcards and Covers)
http://ift.tt/1Fcg1XV May 15, 2015 at 10:00AM
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