PANAMA (1955) Excavation*. FIPEX issue overprinted "Specimen" in red box commemorating the first excavations of Panama Canal and 150th anniversary of the birth of Ferdinand de Lesseps. These stamps were a special order for government display. Only 20 copies exist, four of which were kept by the Panama government. Every stamp was signed on the back by Sanabria and Kessler. Very rare!
AVAILABLE AT $475
GERMANY (Berlin) (1988) Entrance* to Zollern II (coal mine). Scott No 9N552. Yvert No 753. "MUSTER" (Specimen) overprint. **.
AVAILABLE AT $15
NIUAFO'OU (Tin Can Island) (1993b) Gems*. Diamond*. Volcano*. Progressive proof from Evolution of the Earth series overprinted SPECIMEN. These proofs were produced in strips of 5 with the central stamp printed in the progressive colors as they were added. Each is labelled with a color number, 1=yellow, 2=green, 3=magenta. There are four different strips, with the center stamp containing colors, respectively, 1, 1+2, 3, 1+2+3. This strip is color 3. Scott No 111A, Yvert No 179. Very hard to find as a complete strip!
AVAILABLE AT $50
GERMANY (1957) Mining*. Set of 4 with MUSTER (specimen) overprint. Scott No B356-9.
AVAILABLE AT $60
GERMANY (1968) Zinc sulfide*. Lead sulfide*. MUSTER (specimen) overprint. 1000th anniversary of mining in Harz Mountains. Scott No 979, Yvert No 412.
AVAILABLE AT $15
GERMANY (1969) Brine pipeline*. MUSTER (specimen) overprint. Scott No 1009.
AVAILABLE AT $15
GERMANY (1975) Bituminous coal extraction*. MUSTER (specimen) overprint. Scott No 1179.
AVAILABLE AT $15
GERMANY (1976) European Coal & Steel Community*. MUSTER (specimen) overprint. Scott No 1209.
AVAILABLE AT $15
GERMANY (1989) Symbolic nautilus shell*. Mining symbols*. MUSTER (Specimen) overprint. 100th anniversary of Trade Union of Mining and Power Industry. Scott No 1588, Yvert No 1268.
AVAILABLE AT $15
GERMANY (1991) Entrance* to Zollern II (coal mine). Scott No 1528. Yvert No 1169. "MUSTER" (Specimen) overprint.
AVAILABLE AT $15