

Opinel No. 8 of unknown age
Fresh from eBay is my latest Opinel, a well loved No.8 of unknown vintage straight from France. Is there a way to discern an approximate age based on the features? The locking ring says 'No. 8 Virobloc Brevete' and there is no 'Made in France' on the ring. Nothing at all on the handle. There is also no indication of Carbon or Stainless on the blade, but given the patina I assume it's Carbon steel?
Looking forward to cleaning this one up a bit - not too much though, I kinda dig the 'patina' on the ring and blade!
Thanks in advance to anyone that can help me place an approximate age on this one.