Switzerland 1987 ATM (Frama stamps)
Type 7x Helvetia small, brownish red, paper without fibres, narrow digits, etched precisely, fluorescent,
single value on express letter with Early Date Full Cancellation "15.06.1987 8640 Rapperswil SG" (7 IIIxb), luxury quality,
SBK 7x, ZST 7xa, Michel 3.7b, Seitz 7 IIIxb, Schalch 7X.
Explanations: Duration: 05.05.1987-02.10.1991, cliché: HELVETIA (small), type of digits: narrow, printing color: brownish red, 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.
