They were numbered funny, way back then.
It's easy to tell which is which though, I don't bother with the numbers-
the 2 with a very steep angle are the top ones, left and right are obvious.
The other 2 which have hardly any angle slope opposite to the top ones, ie the door slopes in at the bottom. So these are slightly thicker at their bottom edge.

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.
