roadsters don't have key locks. I'm helping a friend who bought a 34. Mike the 35 should have a one sided key unless someone changed door handles. does your switch have 2 sides or one key cut?
earl......my coupe door lock has a basco briggs & Stratton double sided and key has a double edged cuts. It uses a basco #12 for 1935. Not sure where I saw it but the 34 fishered bodies use a basco #11 I think I saw written down somewhere.
I believe the outside door locking handle has a code stamped into the shaft which will allow a gm dealer or a key place to use that code to create a new key from a blank.
My 35 coupe has a Cadillac tilt and telescoping 1964-65 Cadillac steering column keyless. The roadster had some kind of non stock column in it which I trashed. There is an olds or buick 69 tilt and tele unit ready for the roadster so no idea whats stock key looks like .
Not sure if I found the info online or out of a 1929--1940 gm parts book re BASCO keys.
mike lynch
35 std coupe
35 std roadster
35 std phaeton