Hi Roy,
Here's the scans that I previously posted:

http://www.thechipboard.com/cgi-bin/tcb/tcb.pl?noframes;read=338836

I think the ones you show are PA-TZ. Some minor differences I think can occur due to wear. I don't know if these chips are etched by hand. If they are, that could also account for minor differences.

Maybe someone else can post the answer to that. If anyone is still out there...