Switzerland 1987 ATM (Frama stamps)
Type 7x Helvetia small, brownish red, paper without fibres, narrow digits, etched precisely, fluorescent,
single value 0050 on letter in running time "07.08.1990 3456 Trachselwald" (7 IIIxd), interesting combination of numbers in the cancellation "3456 7890 12", luxury quality,
SBK 7x, ZST 7xb, Michel 3.7d, Seitz 7 IIIxd, Schalch 7X.
Explanations: Duration: 27.04.1987-25.01.2001, cliché: HELVETIA (small), type of digits: narrow, printing color: redpurple, paper: without fibres, glossy gum, fluorescent: area-wide fluorescent (paper also phosphorescent), impression cylinder: etched precisely, white-greenish-blue security underprint (rosettes), color ribbon: nylon ribbon III, printing: Wertzeichendruckerei PTT, Bern.
