National Cycle Mfg. Co. - various parts needed.

[dnc1]

Looking for a pair of rear hub to frame washers for a 'National' Bay City, Mich. project.
These are those crazy washers with the raised spiral section that engages with the raised sections on the rear dropouts to provide chain tensioning.

If anybody has just one that would be good, I can use it as a pattern to get some more made.
Thanks,
Darren.

 

[dnc1]

Anyone got one (or possibly two) lurking, forgotten and forlorn, in their parts pile?

 

[dnc1]

Oh, a set of 36 rear/32 front hubs would be good also!
National examples below (thanks @Rambler for photos).....

Or similar type?

 

[dnc1]

I'm also looking for one of these:
This is the seat collet nut I'm looking for.
Thread size is 1 inch x 24 TPI.
Internal diameter of hole is 13/16 of an inch.
Thanks to @Rambler for photos and dimensions.
Yours, in hope!
Darren.

 

[dnc1]

Still looking for the above!?!?