Switzerland 1983 ATM (Frama stamps)
Type 5A Helvetia small, redpurple, paper with fibres, wide digits,
single value 0050 on letter cancelled in the running time "06.09.1988 7006 Chur 6 Lacuna" redpurple (5AIIId), luxury quality,
SBK 5A, ZST 5Ab, Michel 3.2d, Seitz 5A IIId, Schalch 5A.
Explanations: Duration: 15.12.1987-18.06.1991, cliché: HELVETIA (small), type of digits: wide, printing color: redpurple, paper: with fibres, glossy gum, fluorescent: no surface (phosphorescent), impression cylinder: imprecisely moletted, white-greenish-blue security underprint (rosettes), color ribbon: nylon ribbon III, printing: Wertzeichendruckerei PTT, Bern.
