KALAMBAKA: 1897, cover to Istanbul used during Greco-Turkish war franked with 1pi of 1892 coat of arms stamp and cancelled by KALABAK manuscript. Believed to be the only known cover. Certificate Turkish & Ottoman Philatelic Society (Image 1) (Image 2) (Image 3) (Image)

THESSALONIKI: 1909, picture postcard to Diego Suarez, Madagascar franked with pair of 10pa of 1908 issue and tied by SALONIQUE 2 (A&P type 37) datestamp. Unique destination. (Image 1) (Image 2) (Image)

1951, Marshall plan 700-5000 dr. in corner blocks of four, unmounted mint, very fine (Mi. 880,-) (Image 1) (Image 2) (Image)

1960, CEPT 4,50 dr. blue with double print, unmounted mint, fine, signed Sieger (Image 1) (Image)

1987, CEPT 40 and 130 dr. imperforated, block of 4 with two vertical gutter pairs and sheet margin at right, unmounted mint, fine (Image 1) (Image)

1987, CEPT 40 and 130 dr. imperforated, each two stamps in strip of 4 with sheet margins on three sides, unmounted mint, fine (Image 1) (Image)

1989, CEPT 60 and 170 dr. in progressive proof printing sheet with four miniature sheets with shifted perforation, unmounted mint, fine (Image 1) (Image)

1989, CEPT 60 dr. and 170 dr. in half printing sheet with two small sheets with strongly shifted vertical perforation and double perforation at left, unmounted mint, light fingerprints at right, otherwise fine (Image 1) (Image)

1989, CEPT 60 and 170 dr. in proof printing sheet in final design with four miniature sheets with shifted perforation, unmounted mint, fine (Image 1) (Image)

1989, CEPT 60 and 170 dr. in imperforated sheet, unmounted mint, fine (Image 1) (Image)

1989, CEPT 60 and 170 dr. in imperforated sheet, eight stamps at left with vertical shifted perforation unmounted mint, fine (Image 1) (Image)