1915 3c on 3k carmine, surcharge inverted, block of four, l.h. at top, bottom stamps n.h., fine-v.f., signed Prof. Winterstein, cat. $400 (Cat No. 52a) (Image)

Cat. $400, Est.$150

1920 4c on 4k inverted surcharge (2), 5c on 5k imperf. surcharge inverted (3) and double (2), variety of positional shifts, l.h. or n.h., mostly signed Dr.Jemchouhin, Calves, etc., cat. $1210 (Cat No. 75a,80a,80b) (Image)

Cat. $1210, Est.$500