GERMANY (1990) Stamp*. Heads of Youth Collectors*. M/S of 6 with MUSTER (Specimen) overprint. Scott No B693, Yvert No 1304.
AVAILABLE AT $25
GERMANY (1989) Stamps*. Posthorn*. MUSTER (Specimen) overprint. IPHLA Philatelic Literature Expo. Scott No B677, Yvert No 1247.
AVAILABLE AT $12