[6pack] Numbers Painted on the Block - John Mac?

[John Macartney]

> After having my block cleaned for a rebuild, I noticed these numbers written on the side of the 
> block in organge paint.  Anybody know that these signified?  John Mac?

Hmm. Certainly the paint colour is familiar, though a little faded by time. Methinks perhaps the guy 
with the brush had washed it out in some thinners and was looking around for something to rub it on 
to get rid of the surplus paint? I passed the query on to an old friend who was an apprentice in 
Engine Assembly for a while - and he's just came back with this reply ....

"... looks like it was the symbol that pudding in the canteen today is Spotted Dick WITH custard."

Any help?

Jonmac