At least one is model 37-84 - the other might be the similar model 84 or another of the same. I can tell by the (metal) octal tube in one - octal tubes hadn't been introduced in '34 when the model 84 came out. You can find Philco service bulletins for both on my Philco page:
http://www.audiophool.cjb.net/Philco.html