Scott Benjamins CD on gas globe valuations shows a value of $350 to $500 on the "Tydol" globe.
It also shows a value of $500 to $750 on the "Tydol with Ethyl" globe. Since is a single lens, you would deduct $200 for the body and divide the remainder by 2 to get the value of the single lens, and then add it back onto the body to get the total.
In this case, $475 if you figured top end values.
This CD was produced a couple years back and things have changed a lot in the past 2 years, but globe values have been much slower to change. You have 2 nice pieces there and I'm sure someone will chime in with their opinion. Values always seem to vary by geological location too! Good Luck!!