[Arran]

Those 37-116s are more common then you might think, although they aren't as common as a Philco 20, but since they built several hundred thousand Philco 20s there aren't many Philco models that outsold the 20 other then maybe the AC/DC sets of the 1940s. There were two versions of the 37-116, yours is the deluxe version which is the most common but there was a standard version without that "Teledial" automatic tuning feature that they stopped making about half way through the model year. The standard version didn't sell as well so there is maybe one of those for every three of the deluxe kind, but between the two they still managed to sell tens of thousands of 37-116s, according to Ron's book, it was very popular for a high end set.
It's funny that you should mention the Philco 20, that's one of the sets on my shopping list but I'm looking for the deluxe version not the plain brown wrapper version, I've always liked the looks of those.
Regards
Arran