to wrap up the Hafner cast iron...
by the mid 20's Flyer clockwork models were in their third redesign with rivet and piping detail not found in the early castings...
even the economy Hummer line showed some details.
Hafner responded with two new models, the economy #109 (late) replacing the #100 locomotive and more than likely the early #109 which was the larger casting but without the brake and siderods...
and to replace the higher end #110 (early), the #110 (late).
fairly similar to the #109 with a little extra length, side rods and a brake. the extra dome on the #110 (late) is the most identifiable difference between the two, though with the lack of complete cylinder castings, the #109 (late) cannot support siderods.
in my experience the smaller #109 (late) is the harder of the two models to find. both late models were replaced when Hafner phased out cast iron completely in the early 1930's with the newer #1110 sheet metal Types.
cheers...gary
(yes, the #109 motor side frame is olive drab... it's actually gray on the other side. definitely factory original. ... one of those tinplate mysteries)
