505 Tang Stamp

[popcornpicker]

I just bought a used 505 and the date stamp is one dot to the right of 505, this doesn't seem to follow pattern. Any idea what year this would be?

 

[Haebbie]

Have a look at this thread, popcornpicker, but I don't think, that the answer satisfies you. May be, that meanwhile anybody alse knows more

http://www.bladeforums.com/forums/showthread.php?t=373471&highlight=505

Best regards,
Haebbie