I believe some tubes have rifling that identifies them, a happy evening reading online awaits you :)
Pinned lugs is another token, small batch Italian builders tended to use these. Of course aelle is still possible then but it may give hints too if its not a Concorde after all
I believe some tubes have rifling that identifies them, a happy evening reading online awaits you :)
Pinned lugs is another token, small batch Italian builders tended to use these. Of course aelle is still possible then but it may give hints too if its not a Concorde after all