SincoTC,
Narrowed down well! It is a ROBIN, the significant differences between the multitude of variations are/were Sliding v. Hinged doors, clear v. painted cabin roof and engine size!
DR.300 series is close enough, I don't think you will get closer from the cockpit picture! It is in fact a DR.360 Chevalier:
This one was air raced by my Dad in the early 70's...
SincoTC, you have control!
'866