Matt,

If you get a chance, take a look at the pics for USS Barney (DD-149)over at navsource.org - I'm building Barney, Melissa's grandpa was a crew member. The tubs are pretty clear, but what's in them sure as heck ain't. The more I think about it though I think you might be right on the 20s - what's in there looks just a bit too big to be Mother Deuce.

Mike