I'm trying to find a source for white crewneck undershirts which have a vintage cut. They should be more form fitting, rather short sleeved, wide collar, and a rolled neck collar if possible. I'm looking to find ones that would be correct for the 1940s. If you know of a good brand that makes such a shirt, please let me know (I've already spent a couple hours scouring the internet for one to no avail). Thanks for your help!