Prompted by Baz's thread on the mod. 16.

I remember my dad had a model 15 which was the first airgun I held and fired.

The 15 looks like the 16 but just had a wooden butt and metal action - not full stocked like the 16. Probaby had the same action too.
He sold it to a gunshop for £6 (yes six pounds ) in the late 80s. I wish he'd kept it, it wasn't in great nick in fact it struggled to get a pellet out of the barrel, literally, but would have made a great restoration project though.

Any of you knowledgeable collecting types have any information about these - value, rarity, typical power, where to buy?