I've raised this question before but one more try please.

The attached scan shows the ten Mapes roulettes that I have that are clearly and distinctly different. The top row have the letters closer together whereas the bottow seven have letters more widely spaced. The widely spaced are in much better condition indicating that they are newer.

The first and second row, far right, are both orange, N5216. Otherwise there are no two of the same color with different spacing. How many of these variations are there anyway?

Thanks again--I think Jerry Birl answered this once before but I'd appreciate his and anyone else's views.