Nothing from deHavilland Canada that I'm aware of. Never seen a manufacturer's POH, either.
From TCDS A-19, Issue 11 for the DHC-1, pages 3 and 4:
"Required Equipment Approved DHC-1 Chipmunk Airplane Flight Manual (DHC-1-2B-S3) PSM1-1S3-1" For example.
That model of the Chipmunk is required to carry the approved Flight Manual.
There are RAF pilot's notes of dubious worth
I would imagine that the RAF qualifies as an entity who are able to create and approve a Flight Manual, or other procedure, for aircraft that they operate, but that's just my opinion....