classic motorcycle forum

Up to quite recently you couldn't give those buggers away...how things have changed! That bike has the look of an "unridden resto" to me, so maybe expect the usual teething problems?
Is the tank a different colour to the rest of it? Optical illusion most likely.
I was never a fan of strokers either until I discovered Smirnoff   err Scotts, I meant to say.. 
Should be a fun bike to ride.

It may actually be the same age. BSA, like any business, didn't want to get stuck with redundant immovable spare parts, and when some storeman pointed out in 1952 that he still had two gross of the older and smaller headset bearings left, the foreman told the frame shop that he wanted the smaller-sized headstock for the next two hundred frames. Problem solved.
This assumes that the numbers stamped on the frame are consistent with 1952, obviously.

That's a good idea. Once barn finds had a hen sitting on top and some hay hanging off them, now an alleged barn find is often pictured in a suburban street...

  . I appreciate it is not worth a lot but it would make a good run around.
Richard

Maybe it would, if the buyer paid next to nothing for it and fitted cheap tyres and a battery himself, but those days seem to largely be over. If some young kid bought it then paid someone to fit new tyres and a battery (plus whatever else it needs cleaning/adjusting and renovating after this long out of action) he may as well have paid for a runner in the first place.
 I have to agree that it's not worth your time and effort doing any work on it, flog it for whatever it makes as is.
{Is it an H100? Never that great when current if I recall}

Or Draganfly. They have good on-line parts diagrams too.

If the rear rim and hub condition is typical, then I reckon there's more pressing issues that stripping the plunger units! With all due respect, if you're at the level of terming plungers "jampots" then maybe you should begin with the easier tasks and leave the more complex parts until later? You may find the constant problem-solving aspects to be too much and only want to throw it all in the shed in disgust.

Can't help with a positive ID on that, but how dumb would any "classic bike" shop be to crush the legs beyond further use? Were they so far gone that you couldn't ease them back into circular?

If you advertised it at three grand the queue would be around the block...maybe the market's telling you that it's over-priced? {I have no idea if it is or not..just hypothetical that's all }
The glossies' ads are hopelessly out of date by the time we get to see them, and OBM, to my mind, has fewer ads than in it's hey-day of years back.
EBay's full of wa*kers (or can be) and other assorted idiots, costs a bomb but at least you can buy/sell in just seven days rather than months.