George D Stock of Philadelphia is the father of American HO (3.5mm) scale / gauge .
1929 Stock began building his Diminutive and Obstinate Railroad..HO gauge , outside 3rd rail.
Stock began promoting the gauge with articles and selling parts...in late 1934...and offered the first American HO engine kit at the end of 1935.
Stock was a very talented custom builder of engines in HO & O scale and is well known for his outstanding painting / striping & hand lettering.
Stock displayed his D&O layout at his hobby shop ..the outside 3rd rail was replaced with 2 rail around 1950.
To see Stock's first engine run please see link
https://youtu.be/vvWj4oxZTsg
"HONGZ" stands for HO scale, N scale, G scale, and Z scale.
Post your non-O scale stuff here!
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