Here are few more ads etc from Mi-Loco and Min-I -Scale
Cheers Carey
PS Any one who has a Lionel City of Portland , Hiawatha , and the scale 0-6-0 also has 17/64ths within your collection. Did not you ever wonder why the Hiawatha looks down on the little 700E ?
Earliest ad for Mi-Loco June 1935
Latest for Min-I-Scale Nov 1938
This is based only on what I have found to date ... the window could be pushed out on both ends with more research .
Cheers Carey