The Morning Train on the Rhaetian Railway in Switzerland

Der Morgenzug der Rhatischen Bahn.
I believe this translates something like ...
The Morning Train on the Rhaetian Railway

Kontrollfahrt im Bahnland Graubünden Echte Menschen. Echte Ferien.
(Control run in Bahnland Graubünden Real people. True Self.)

This postcard is postmarked from Switzerland in 2016 with the signatures of 18 people from a Postcrossing meet-up.

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They started building the original train tracks here on June 29, 1988.

Switzerland  (Helvetia) stamp 1974

Definitive Issue

Bay Window, Blue, 2 - 200