Speedway rim

#1
I am looking for a 1973 Speedway Motocross front rim, size 16 made by Sun. The same rim was also used on 1973 Speedway Enduro. I am sure it was also used on many other bikes. Any help would be appreciated. I have 16 rear, 17 and 18 front all NOS that I would be willing to trade.
 

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