Here are some schematics. See if any match tubes in your radio? RME69 was a popular model.
http://www.nostalgiaair.org/Resources/336/T0000336.htm
Norm
:Very old radio. Found in basement of old house( silent key). How can I tell what mod. it is. Do not see any numbers on it.
Mike,
Radio Manufactures Engineers Radios first appeared in Riders Volume 7, which covered LATE 1935 THROUGH LATE 1936.
This manufacturer continued to produce sets that were covered in 10 Riders volumes, 7, 8, 10 - 13, 15, 17 - 19.
Gary