Found and old dump site in Decorah Iowa

[Bottle finder kid]

No idea what these are or how old the are, anyone help me out?

 

[Drift]

That first one is a Noxzema bottle, it's still sold in blue (plastic) bottles today. They started in 1914. I'm guessing yours is from the 1930's or 40's. They're common, but I grab every whole blue bottle I see because they sell a little easier than others. Still only worth a buck or two maximum. Most of mine have gone for just a quarter.

 

[CanadianBottles]

The other one is generally considered a poison bottle, also dating from probably the 1930s to 50s. They're quite common in brown but the blue ones are more collectible.

 

[Pascagoula Paul]

M inside a circle (on the bottom of glass containers, especially medicine bottles of many types and sizes, often in cobalt blue glass) – see more information about this mark on this webpage……….. Maryland Glass Corporation, Baltimore, Maryland (1907-c.1970s)

Glass Manufacturers' Marks on Bottles ~ Page Four

Marks on Glass: Extensive alphabetical list of trademarks on bottles, fruit jars, insulators & tableware with basic info on glass companies!

www.glassbottlemarks.com