That would make more sense since the sock doesn't look tight enough to be a capo. Looks like it's covering the 1st two frets. That would put the inlays in the typical spots of 3, 5, 7, 9, 12 15, 17, 19 and 21.
Looks like a Les Paul without the pick guard which is why there's a screw next to the pickup. The one I have looks similar.