Greetings . . .

Spotted this on eBay yesterday:
C.A.W. Valve Cover

The markings seem a bit strange compared to others I have seen:

and the one I own:


The differences in type faces used and the indented 'pat pend' are curious.

I guess there was more than one casting . . . till now every other one I have seen was identical to mine:
Inliners post circa '06

regards,
stock49