Three Cobalt Pharmacy Bottles Vintage Set of 3

This listing is for three cobalt pharmacy bottles - they're all the same except for their markings on the base. All three have an M in a circle and a number, either 2 or 5. These are medicinal, or pharmacy, bottles. Maryland Glass Co. used the M in a circle mark between 1925 and the 1950's. Height: 2 inches. In very good condition.

bottle, cobalt blue, collectable, collectible, smoke free