Found a Pound - Escape?

An entry for the Found a Pound art installation competition type thing for the upcoming Liverpool Biennial.

You design a sticker that they put on a pound coin and then leave around art galleries in the city for people to find. Quite quirky and interesting. More info at http://www.foundapound.com

This one here is 'Escape?'

Is it to get in, or to get out? Who knows!?