Not a pawn shop as such but a tiny store in Hobart, Tasmania selling used musical instruments and equipment.
Hanging on this back wall was a used Epiphone EJ-200.
I got the store owner to get it down for me. It was clean with fresh strings and in perfect tune. I bought it.
When I got it home and went over it carefully I was pleased to say it was close to mint.
Strange white plastic thing installed in the sound-hole turns out to be a Planet Waves O Port Sound Enhancer - can't say if it works or not but the guitar sounds great so I'm not touching it!