Please read before you purchase up for your consideration or three plastic lens covers Railroad signal they measure eight and three eights crossed as Amber three red and two turquoise or green and two smaller ones which are red and Amber also which the smaller ones measure 5 1/2 the larger ones are 8 3/8 please look at pictures and PM questions if you are looking for vintage Railroad signal lenses this is worth your attention. Note that the red one is made by general signal co. Note that the last lens red one that is eight and 3H diameter has some kind of glue or something on the edge which may be hiding a flaw.