[Theoldprofessor]

Gents;

Please forgive the intrusion -- you're way out of my league, but I like to read along anyway.

I got out all my Sovereigns. One 460, 17 350s and 4 150s.
All shades of green from apple through viridan (or at least that's what Wikipedia calls it). Comparing the three varieties, it's obvious that the "150" is in much bigger print than either of the others. Please don't give up yet...

But it also looks like the 350s come in at least two styles, reminiscent of common differences in coin dates;

In most of my (relatively few) examples, the bottoms of the digits in "350" appear to lie in a line;

In a few, the bottom of the "3" in "350" seems to lie below the line established by the "50."

Has anyone else ever noticed this? Optical illusion? I don't have equipment sufficiently sensitive to measure what I think I'm seeing. I hope I'm not making it up, but if I am, please say so and accept my apologies.

It's too late to start scanning, but I'll do it tomorrow if anybody cares.

Thanks for any help you might offer.

Bob