1920 15pf dark blue violet (better shade), bottom margin block of four, pos. 87-88/97-98, three different overprint varieties, including top stamps with type "A" (bar broken vertically) variety, lower left stamp with type "B" (bar broken horizontally) variety and lower right stamp type "D" (broken last quarter of the bar) variety, n.h., v.f. and rare, unlisted in this better shade, with 1982 Burger certificate (Mi.7cIA-B,D) (Cat No. 7var) (Image)

Est.$250

1920 20pf blue violet, double overprint, small h.r., fine, signed Burger, Brun, with 1999 Behr certificate (Mi.8aIDD) cat. €750 (Cat No. 8c) (Image)

Cat. €750, Est.$200