1958 – Switzerland – PTT – Olma St. Gallen

1958 – Olma slogan PM

PTT – Olma St. Gallen – 09 – 19 October

Date: 17.10.1958

Postmark: Schweiz Automobil Postbureau

Stamps: Anniversaries 1958 – Stanley Gibbons 587 -590, SA stamp is SG 590