Germany-DDR 1989 100 years Carl-Zeiss-Foundation, Jena

• Label ; "Deutsche Post" of the Germen Democratic Republic; 1989; commemorative stamps of the issue "100 years of the Carl-Zeiss-Carity Foundation, Jena9";
  

meant is Jena in contemporary Thuringia; issue of 1 se-tenant à 2 stamps + 1 ornamental field (middle

Stamp datas:

• Catalogue numbers : Michel: 3252-3252 (WZd801); Yvert %& Tellier: No. 2861-2862; Scott: No. 2752-2753
• Colors : multicolored with silver
• Watermark : none
• Nominal value : 1.35 (Mark) = 50 - none - 85 (Pfennig)
• Postage validity : 16 May 1989 - 02 October 1990
• Designed by : Ekkehart Haller (* 1938)
• Printed by : "Deutsche Wertpapierdruckerei", Leipzig
• Print process : Photogravure on luminescent paper
• Perforation : Comb perforation, K 14
• Print runs : 3,000,000 se-tenants à 3x5 se-tenants
• Stamp size (printed area of a single stamp without silver framen and signatur line):

- 21.0 x 38.5 mm (single stamp)

- 72.0 x 38.5 mm (se-tenant)

Stamps of the issue "100 years of the Carl-Zeiss-Carity Foundation, Jena"
(issue of 1 se-tenant à 2 stamps + 1 ornamental field)

Se-tenant

Michel No. 3332ZD, mint

Michel No. 3332ZD, postmarked

To the stamp motives:
- 50 (Pf.): Interference-microscope "JENAVAL interphako"
- ornamental field : Portrait of the physicist Ernst Abbe (1840-1905)
- 85 (Pf.): Two-coordinates measurement unit "ZKM 01-250 C"