SA 17 – Switzerland – Multistamped FDC

SA 17 – Private Multistamped – Unique?

A Swiss multistamped 1982 FDC was just obtained. It has a very rare postmark;  from 9105 Schonengrund. The PM seems to be a special tourist PM, with the text: “Ferien Wandern Erholen” (Holiday Hiking).  The item is a private and registered cover, possibly unique.