1926 For Public Instruction (Na Oswiate), imperforate singles, large margins, n.h., v.f., signed Kalawski (Fi.228-29nz, 6,400zl) (Cat No. B26-27var) (Image)

Est.$400

1946 B.I.E. (International Bureau of Education), set of three sheetlets of 12, also souvenir sheet of three, n.h., v.f., cat. $1395 (Cat No. B49-49B,B49c) (Image)

Cat. $1395, Est.$400

1946 International Bureau of Education (BIE) souvenir sheet of three, canceled Warszawa 21.X.1946, v.f., signed Krawczyk, scarce used, cat. $575 (Cat No. B49c) (Image)

Cat. $575, Est.$250

1946 B.I.E. souvenir sheet of three, with black (instead of blue) serial No. 2290, n.h., v.f., with Wysocki certificate (Fi.Blok 9, 2,000zl) (Cat No. B49c,var) (Image)

Est.$150

1947 5+15zl surcharge, strong offset on back, n.h., v.f., signed Wysocki (Cat No. B54var) (Image)

Est.$100

1952 unissued 45+15gr brown, without "Lenin" above "Poczta", disturbed gum and marginal repairs, looks unused, sold AS IS (Cat No. B94a) (Image)

Est.$150