CH 2002 SFS 18a FRAMA switch device, blue, four digits, w/o device id, MNH

Switzerland 2002 Postal automation,
switch franking mark 18a FRAMA switch device with date border and time, white paper,
various devices, first day 15.01.02, value 0070, color change blue,four-digit instead of five-digit amount, without device id, single value MNH,
Catalog SBK SFS 18a.