Baukta

Baukta 1 (looking West, aka the soft and hollow): plastidip on paper on plaster gauze bandage.

Baukta 2 (looking East, aka the hard and full): temporary tattoo paper on synthetic plaster.

More pics

Spoilers:

“Kta” is one of several French slang spellings for “catacombs”.

“Vous êtes ici” means “You are here”.

The map is from Jonathan Littell‘s 1989 novel Bad Voltage.