10 Kopek postal stationery card with the overprint "PLESKAU / 20 kop", on the left with an imprint of the automotive industry (Russian official card P129. I. 191), genuine black hand-stamped overprint, blank card, mint, flawless condition, photographic finding by Robert Brunel VP (2025) "The condition is flawless", signed by Keiler BPP and Hans Zierer.