Here is an outstanding pair of Tel Fed Mex's that are both super clean. You'd be hard pressed to find upgrades for both.

The milky green piece has a slight lean to it and nice swirls in the skirt. There are two flea bites on the dome and an annealing line associated with a very shallow, long open bubble above Fed.

The aqua piece is sold and shown for color comparison purposes.

Purchase the green piece for $300 shipped and insured to the US