[Image snipped from the Feb '79 issue of Model Railroader article, It sure doesn't look like a powder works, by George P. Landow]
Thus far I had built a Campbell wharf, a few other scratchbuilt docks and buildings in HO scale, and was trying to devise a good plan for a marine supply company when I opened the pages of the April 1977 MODEL RAILROADER. There I encountered E. L. Moore's Cannonball & Safety Powder Works. Granted, it does not look that much like my completed structure. But those of you interested in the way one kind of model can be developed into a very different one will be able to apply some of these construction techniques to your own modelling.
And so begins George Landow's article on how to build the Frary & Hayden Marine Supply Co., appearing appeared in the Feb '79 issue of Model Railroader, that was based on E. L. Moore's Cannonball & Safety Powder works that appeared in the Apr '76 issue of Model Railroader.
As I thought more about those AHM Trolleys, I remembered that Art Curren's Kitbash a rail bus article that appeared in the June '79 issue of MR used a trolley as its basis. It turns out it was a Tyco Trolley - which maybe is the AHM trolley - but his article stated he also did a doodlebug kitbash in the Feb '79 issue, and following the trail to see if that also used a trolley, I stumbled across George Landow's excellent marine supply based on E. L. Moore's powder works. Do all roads lead to E. L. Moore? Apparently when you ride with me they do :-)