Wow, I guess I really didn't mean to be quite that specific! If we discount the more or less one of a kind lenses and didn't get picky about glass color, panel numbers or materials and such it would probably be easier. Was there much difference in similar lenses made by more than one manufacturer? As far as flashing or fixed, isn't that mostly a function of the light rather than the lens?

So I guess if we started with 7 for the number of orders and counted only the more common, mostly similar styles it might be easier to come up with a number?