I was very fortunate to recently aquire the original 13th produced Pro M frame and lens. I got an letter of Authentication with it from the Coordinator of Oakley's Design Department. They were handed out to the Oakley design
team members on the first day of manufacturing years back. On a side-note, according to the designers who designed the Pro M frame, the (number) #13 has been a long time 'lucky' number of Jim Jannard and many internal meetings and Oakley events co-incided around the number 13.
Given that the Pro M frame is my favorite Oakley product (the Monster Dog a very close 2cd); I'm thrilled to own the 13th Pro M manufactured. It is in absolutely Mint/Brand new condition, never used and came with it's soft
storage bag and soft vault icon box. Frame color is red with white icons, with grey heater lens. The lens have a unique microscribing on them, compared to the newer microscribing feature under the nosebridge.
I realize many folks enjoy other models of Oakley, but for me; the reductionist-design, perfect fit, and clean lines, make the Pro M Frame a significant Hallmark Oakley product.