J.R. Torrey Little Guard...?

I've recently picked up at J.R. Torrey "Little Guard" at a local antique store. It is about 3/4" shorter than your standard straight edge. I'd never seen or heard of one before, and I got it at a price I couldn't turn down with the original box if great condition. I know J.R. Torrey is a reputable brand, but know little to nothing of the razor itself...just wondering if anyone else had any info on it...? Thanks in advance...