Rare old El Paso Margarita Glasses Cactus "Old El Paso" is a top brand of Mexican Tex-Mex ingredients with a history of nearly 100 years. These are Old El Paso margarita glasses that I couldn't find even after searching. I think they are quite a rare item. How about a set of 4? The age is unknown. These are old items, so please purchase only if you understand antiques.