Combination (C)

Two Soviet envelopes 1987, Michel #U 528, part of a series, both registered mail, featuring stamps of one and the same set.

1. Belarus Flag
Postmark (Poststempel): Sverdlovsk 1988 /
Commemorative stamp 1988 5k Michel #5825, Yvert #5509
Addressee Postmark: Sofia 1000, Bulgaria

2. Russia Flag
Postmark (Poststempel): Sverdlovsk 1988 /
Commemorative stamp 1988 5k Michel #5824, Yvert #5508
Addressee Postmark: Sofia 1172, Bulgaria

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