Alright, it's a mystery to me. I have had this grille shell hanging on the wall for a while now, and I can't get a definite answer on what it's from. My guess is late 20s-early 30s truck, maybe big truck. Can't find anything on google images that is an exact match. Surely someone knows...clock starts now!
Found a picture online. 1930 AA truck. Stupid computer won't let me post picture. Thanks for the heads up!
It's a 1930 or 1931 AA, they had an extra row of tubes in the radiator so your shell should be longer that a stock shell. The fit is closer to the headlight bar as well. The "Holy Grail" of Model A shells is this one in stainless steel, they were found on fire engines. Bob