These flat tumblers are part of Morgantowns Crinkle #1962 pattern and El Mexicano #1933 pattern. The Crinkle pattern is very similar to El Mexicano (LMX), if the color is transparent then its Crinkle and if the color its opaque then its El Mexicano(LMX). Colors(left to right): Moss Green, Green, Seaweed, Blue, Unknown).
