Vintage 1930's Slingerland May Bell Parlor Acoustic Guitar model 0

Description

I believe this is a 1930's guitar although I have found no markings and have not put a light or mirror inside.  These are great old guitars and quite a lot of data on line about them.  This guitar has been played, has scratches and a crack in the top ( see pictures).  Still plays well and neck seems straight to me, but I'm not an expert.  It is worn as any 1930's played instrument might be.  Not sure if the "strap" is vintage but it came with the guitar when I bought it several years ago and it seemed period to me so I kept it.  No Case.
Please feel free to ask questions and thanks for looking.  Be sure to look at all the research, pretty interesting history.
Will ship to 48 states