AUSTRIA (1970) Pendant watch. Printer's proof on yellowish paper (issued in rose), background color missing. Without gum as printed. Scott No 868, Yvert No 1174.
AVAILABLE AT $80
EAST GERMANY (1973) World time clock. Youth Festival. Set of 7 mperforate proofs including final in issued colors. Scott No B170, Yvert No 1527.
AVAILABLE AT $200
BELGIUM (2000) Millennium. Deluxe proof (LX89). Scott Nos 1783, Yvert No 2877.
AVAILABLE AT $120
CUBA (2020) Akiba Rubinstein. Chess clock. Block of 4 with perforation and color shift resulting in double image.
EAST GERMANY (1973) Vietnamese. European. World Clock. Imperforate phase proof in issued colors. Scott No 1478, Yvert No 1556.
EAST GERMANY (1973) Construction workers. Valve. Clock. Imperforate phase proof pair in issued colors. Scott No 1479, Yvert No 1557.
EAST GERMANY (1973) Fireworks. TV Tower. World clock. Set of 8 imperforate proofs including final colors. Youth & Student Festival - Berlin. Scott No 1477, Yvert No 1555.
ETATS UNIS (1957) Calendrier. Main* tenant éprouvette. Empreinte rouge de machine à affranchir sur fragment Pitney Bowes No 176871: "Honnegers salue le mois de la santé des animaux."