Many thanks, David. I agree that it's hard to be sure at the resolution.
I will try searching on the cartographer and printer names before
taking the plunge!
David Dennis wrote:
search there for Herkimer It appears to be exactly
what you need but I can't be sure at the resolution.
This is at the NYPL (a different collection than the
one you tried, that one is down for maintaince.)
Shoukd be fairly easy to get a copy.
The David Rumsey has a copy of the Hamilton County
from the same series
by the same cartographer. You might find more sites
that have copies by searching for the cartographer and
the printers names.