SAAR (1921) Slag pile at Volklingen*. Die proof in issued colors printed on thin white paper. Scott No 73, Yvert No 58.
AVAILABLE AT $275
SAAR (1922) Cable railway, Ferne*. Die proof in unissued colors. Signed NEY. Scott No 102, Yvert No 86. Hinged.
AVAILABLE AT $275
NEWFOUNDLAND (1932) Loading iron Ore*. Imperforate proof pair with control punch from Waterlow archives. Scott No 210, Yvert No 183.
AVAILABLE AT $60
SAAR (1922) Cable railway, Ferne*. Die proof in black & white. Signed NEY. Scott No 99, Yvert No 83. Ungummed.
AVAILABLE AT $275
GERMANY (1957) Young miner*. Photo essay (See Note) of unaccepted design for mining series benefiting welfare organizations. Scott No B356, Yvert No 142.
AVAILABLE AT $75
EAST GERMANY (1969) Erythrite*. Imperforate phase proof pair with gutter in final colors. Scott No 1105, Yvert No 1164. Michel catalog 180 Euros.
AVAILABLE AT $90
BELGIUM (1979) Grand Hornu coal mine. Ministerial proof. Scott No B987, Yvert No 1951.
AVAILABLE AT $50
NORTH KOREA (2008) Serpentine. Photo proof from printer's archive. Scott No 4761. KSC No 4558. Only 5-10 printed as test print prior to actual printing of the stamps. Each has official Korea Post stamp on reverse.
AVAILABLE AT $100
NORTH KOREA (2008) Minerals. Compound proof. Scott Nos 4761-4.
AVAILABLE AT $75
NORTH KOREA (2008) Copper pyrite. Photo proof from printer's archive. Scott No 4762. KSC No 4559. Only 5-10 printed as test print prior to actual printing of the stamps. Each has official Korea Post stamp on reverse.
AVAILABLE AT $100
NORTH KOREA (2008) Sphalerite. Photo proof from printer's archive. Scott No 4763. KSC No 4560. Only 5-10 printed as test print prior to actual printing of the stamps. Each has official Korea Post stamp on reverse.
AVAILABLE AT $100
NORTH KOREA (2008) Molybdenite. Photo proof from printer's archive. Scott No 4764. KSC No 4561. Only 5-10 printed as test print prior to actual printing of the stamps. Each has official Korea Post stamp on reverse.
AVAILABLE AT $100
NORTH KOREA (2011) Limonite. Photo proof from printer's archive. Scott No 5058. KSC No 4776. Only 5-10 printed as test print prior to actual printing of the stamps. Each has official Korea Post stamp on reverse.
AVAILABLE AT $100
NORTH KOREA (2011) Minerals and their uses. Compound proof. Scott Nos 5058-61.
AVAILABLE AT $75
NORTH KOREA (2011) Kotoite. Rocket. Photo proof from printer's archive. Scott No 5059. KSC No 4777. Only 5-10 printed as test print prior to actual printing of the stamps. Each has official Korea Post stamp on reverse.
AVAILABLE AT $100
NORTH KOREA (2011) Wollastonite. Ceramic vases. Photo proof from printer's archive. Scott No 5060. KSC No 4778. Only 5-10 printed as test print prior to actual printing of the stamps. Each has official Korea Post stamp on reverse.
AVAILABLE AT $100
NORTH KOREA (2011) Stibnite. Tractor & parts.. Photo proof from printer's archive. Scott No 5061. KSC No 4779. Only 5-10 printed as test print prior to actual printing of the stamps. Each has official Korea Post stamp on reverse.
AVAILABLE AT $100
AUSTRIA (2017) 650 years of silver and goldsmiths. Black print.
AVAILABLE AT $15
GERMANY (1957) Miners shoring up ceiling*. Photo essay (See Note) of unaccepted design for mining series benefiting welfare organizations. Scott No B359, Yvert No 145.
AVAILABLE AT $75
EAST GERMANY (1969a) Erythrite*. Set of 5 imperforate progressive proofs. Scott No 1105, Yvert No 1164. These imperforate proofs from the archives of the former East German printer are very rare (only about 10 copies exist).
AVAILABLE AT $250
EAST GERMANY (1969c) Smoky quartz*. Set of 4 imperforate progressive proofs. Scott No 1108, Yvert No 1167. These imperforate proofs from the archives of the former East German printer are very rare (only about 10 copies exist).
AVAILABLE AT $250
EAST GERMANY (1969d) Calcite*. Set of 5 imperforate progressive proofs. Scott No 1109, Yvert No 1168. These imperforate proofs from the archives of the former East German printer are very rare (only about 10 copies exist).
AVAILABLE AT $250
NORTH KOREA (2002) Minerals*. Compound proof. KSC Nos 4221-4.
AVAILABLE AT $100
U.S.A. (1940) Cowboy*. Miner*. Photo essay (See Note) of final design commemorating 50th anniversary of Wyoming statehood. Scott No 897, Yvert No 449. Rare!
AVAILABLE AT $60