That's really cool. I'd leave that sticker on there after installing the cylinder - a very neat touch.
Wes
I agree. Just to bad it is so far away
A: The actual measurment is 12" wide and 24" tall. this is to the outside of the glass cylinder.
Casting Appears to be a G&B. Been awhile since I had one, but remember most all G&B's having a 12.5" x 26" cylinder [except 5gal & the 67].