So far a Deuce Panel Delivery remains elusive, the one in post #18 is a '34 as evidenced by the rear bumper, gas cap and being a 4 cylinder standard it was very rare, one of only 194. The Blatz Beer truck is a '33-no rear bumper and the outside gas filler, a '32 tank is under the seat like a pick-up. The odd thing is it has cowl lamps but painted head lamps; maybe the cowl lamps were dealer added? Regardless, those are two neat trucks that anybody would want today.
Tom, looking at the hood on the fire truck that belt line is high, I think it is a '30-'31 A