"BTW the A&D(?) fore end latch may be a later adaption. I thought a Rigby style lever might be to "period" but who knows eh?"

Thanks for the information on Mr.Baker, very interesting. On this Jeffery, the forend latch is original based on the picture and description in the catalog but with these vintage guns you never know.

What's interesting about Jeffery is they went early to the short, 24" barrels and the Deeley latch. I can't recall seeing a nitro era Jeffery rifle with longer barrels... I'm sure they are out there but they would be unusual.