Questions on Unmarked TR Wheels

So I'm just trying to verify what I think I have figured out on my own. On the early style ko TR wheels, there were actually 3 different sets made? 1 Cromodora metrics, 2 Cromodora 16", & 3 what I call the unmarked/plainwrap style? Can someone confirm that the unmarked wheels were only available in 16", & were these made by Speedline or some other company?

Also, are the spline drives for these wheels the same part as used on most other models during this period, such as Daytona, BB, etc? Thanks.

 

Yes, there is no dia or width info, no Ferrari, & no manufacturer name. But it does say Made in Italy

 

Hmm, no answers to any of my questions yet. So did I stump the experts, or they all just preoccupied with hurricanes & Halloween?

 

I put an ad up for 1 each front & rear that I'm selling, in case anybody needs one. As usual, Fchat gets first crack, if they aren't sold off of here in a little while, I'll put them up on Ebay.