[Tubesforme]

I have restored a Philco Model 21 radio. The original cabinet was beyond repair. I had a replacement cabinet made by one of the phorum members. It is a perfect match to the original. My question is this. I am having trouble lining up the tuning dial and control shafts, with their front panel holes, if I just bolt the chassis to the cabinet bottom. I am wondering if anyone knows if these receivers originally used rubber or urethane chassis mounting washers. It looks like I should be using 7/8" diameter by 1/4" thick chassis mounting washers, but can't find any info on this subject. This is my first Philco 20/21 restoration.

I ask because I did have two small pieces of hard rubber that are a little over 1/8" thick, which I placed under the front corners of the chassis and everything lines up, however the chassis tilts back. Remember this chassis has only three mounting points. Thanks everyone.