There are more builds coming forsale, some have papers if they where using a standard frame.
Here the BSA-Heemskerk v twin and others.
https://amklassiek.nl/een-motorfiets-ma ... 024/08/24/

The cranks must be connected the square four way.
What can you do with it? if the engine is running wel i would put it in a 50 year old car, threewheeler or buggy, no mot needed.

I think it's a square four.

Abingdon was; "just in time for the Stanley show 1904" on that same show Ariel ended the 2HP and 2-1/4HP own engines, only making the 2.5HP of that engine wich they where making from September 1903 until 1909.

I think William Whiteley contacted me to at some point but gave no facts from before 1904 ...

This is what i found on the Abingdon engine.

So tube outside the tank 2 HP, inside 2-1/4 and separate carburettor 2.5 HP.
We are learning everytime a new lead comes up.

There has been discussion about when Ariel made theire first own engine, in September 1902 there was a 2 HP Ariel mentioned but some thought it was a Minerva engine, here you can see that late 1902 they already had a own 2 HP engine.
The frontforks are also Ariel.

There are 2 Ariels unsold that would be unthinkeble 20 years ago, i was prepaired to pay 10.000 pounds for the 1903-1904 J.A.P. engine alone.

There has been a batch of new exhaust valves made of wrong material, they deform (melt), put an old valve in and the problem is solved.

I have altered some lines just in case of disbelief, i found my old notebook .