Thank you, Joe.
The thread "Will the REAL 15 clone please stand up" is what I was reading that got me even more puzzled because of the variety of appearance. I only got partway through yesterday, and will continue on to see if there is more explanation there.
Apparently someone new like me would need to see the insides of the machines and know the years/location (Japan) of manufacture to know it was a clone of the 15 and not a lesser machine design?
I'll keep reading, now...
