ALLEMAGNE (Berlin) (1988) Piano* et instruments à cordes*. Yvert No 770. Scott No 9NB257. La musique et les jeunes. Surcharge "MUSTER" (Spécimen). **.
AVAILABLE AT $30
ALLEMAGNE (Berlin) (1988) Pipeau*. Guitare*. Mandoline*. Yvert No 772. Scott No 9NB259. La musique et les jeunes. Surcharge "MUSTER" (Spécimen). **.
AVAILABLE AT $30
GERMANY (1989) Restoration of St. James Church Organ*. MUSTER (Specimen) overprint. Scott No 1590, Yvert No 1273.
AVAILABLE AT $20
ALLEMAGNE (1993) Différentes phases de la fabrication de la volute* d'un violin*. Yvert No 1519. Scott No 1808. 250ème anniversaire de la mort du luthier Mathias Klotz. Surchargé "MUSTER" (Spécimen). **.
AVAILABLE AT $30
ST. VINCENT (1985) Native instruments*. Set of 4 overprinted SPECIMEN. Scott Nos 845-8, Yvert Nos 858-61.
AVAILABLE AT $15
GERMANY (1987) Organ pipes*. MUSTER (Specimen) overprint. Dietrich Buxtehude. Scott No 1507, Yvert No 1155.
AVAILABLE AT $15
GREAT BRITAIN (1974) Harp*. Coracles of West Wales*. Bridge*. 6p Aerogramme overprinted SPECIMEN and "VOID" below value. Text in English and Welsh.
AVAILABLE AT $120
GERMANY (1990) Hand-cranked Barrel Organ*. Specimen (overprinted MUSTER). Scott No 9N589, Yvert No 833.
AVAILABLE AT $20