Originally Posted by Diamondrose
Serial # AH 475074 is a 66
Just guessing the C is really a G6086868 which would make it a 114 - the prefix determines where the machine was made so the G is a more logical choice for the area. Singer machines with the single prefix of C were made in Germany.
Neither would be featherweights.
Hmmm...rechecking my search on the C(or G) #...I found something different...BRB
ETA: oops! correction: not a 1910 Model 66 but a 1918 Model 114 as posted by Diamondrose.