Rotary Car Dumper

Looking for a drawing or model review of an ad from model railroader july 1952 pg. 58 Rotary car dumper made by Rock Lane Models at 835 Rock Lane,Elkins Park,Pa. it sold for $10.95 in the article . Tha total model was 10" by 8’ ,213 parts and a 24"X36" drawing any help will be apprecciated

I have a complete unbuilt kit including the instructions Let me know if you still need a copy of the 24" x 36’ dwg

David