Tuesday, 8 May 2018

Cave Post office, Grotta Gigante, Trieste



This is another of the Subterranean posts, this time posted underground in Grotta Gigante in Trieste, Italy, which is a very large underground cave system . Grotta Gigante means the giant cave and this post card contains a beautiful oval shaped cachet showing a bat.

The cancellation is 34010 Sgonico, which is the entrance of the cave.

This is supposed to be the largest underground tourist cave system in the world. A group of cavers must have issued this postcards.

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