JN Quilter - Jon,
Thanks. I was thinking I'd have to break out the calipers, but was hoping I could find a chart. I've got a lot of old but good needles of many different systems that I'm trying to ID and catalog for any possible future use.
Some I recognize, like the 1/2 = 14 but others just confuse me.
And one thing I've noticed and I could be hallucinating, the eye size is inconsistent. A size 16 modern needle might have a bigger eye than a size 1 old needle although they are the same basic needle size.
Maybe I should take up something simple like neurosurgery.
Joe