This frame was build in year 53 and is from a HOREX Regina type 01
For comparison, here is a frame from a HOREX Regina 0 build in year 51.
The support for the rubber bearingür where the fueltank is mounted, is 10mm deep. On the HOREX Regina frame type 03 it should be only 5mm deep, but i donīt have a Regina 03 frame for comparison.
Support for fuel-tank in old construction for flat-tank, lock on right side, Fork-support old construction (not strengthened, flat angle), identity number on back right side near support for seat.
On the Regina the backframe is detachable from the frame.