A virgin in these parts Jack? Tons of us actually, some of us aren't willing to be sacrificed for disdainful or pretentious purposes though(not that this thread aludes to that fact of course).
Here's a close up, a reference and a hint....
The close up verifies a good 4 years of wear and tear.
The reference is proof that endurance and investment gives a good return.
And the hint is that the close up could be a reference #18.
As Jack mentioned there may be a more complete and relevant pics on here for those willing to search, other then that it would be up to the owner to put that out of the more specific of his collection.
I've been concentrating on certain bikes and the abilities and accomplishments of certain people(SG as a very specific example) for awhile now, only to just recently realize that I should be concentrating on the thought proccess of the person and application of the vehicle that has obtained those accomplishments. Vehicles come and go, and some even come back... but the people you respect, look up to or want to learn from should be encouraged by you to share their knowledge(not their secrets) and manner of applying themselves... then their ways(the spirit of the race) will remain whether they are here or not.
It's not the design that matters, it's the thought and use of the design.
Good luck with your project RZ it sounds like a tall and worthy endeavor,
Todd