Lot 30637 – Poltava: 1912 1k on 6k medical correspondence stamps selection of six districts (2, 5, 6, 8, 9 & 10) with black overprint

Poltava: 1912 1k on 6k medical correspondence stamps selection of six districts (2, 5, 6, 8, 9 & 10) with black overprint, all with original gum, odd small imperfection but mostly fine to very fine, with printing quantity between 125 and 225 stamps for each, a scarce group (Ch. 92b).