Please forgive my ignorance, but I'm now slightly confused!. Are talking about the machine featured in your original post of 25/Nov?. You show two different set's of images. one before cleaning & one after. Both sets show (what appears to be) a small loop framed cycle. If we talking about the same machine, then this IS a 1930s cycle.
All the bright work (bars, chain-set, brakes, etc) are clearly CHROMED. There is NO NICKEL on this bike what so ever. Plus, every part of this bike 'CRIES" out 30s. The mudguards are typical square section (BSA used this profile from 1931).