Amber Jar

[SusanEllis]

I was able to identify the maker's mark as Wheaton, and the possible purpose of the jar, but can't determine if the 45 is a year or something else.

 

[ROBBYBOBBY64]

Shoe polish bottle is my guess.
ROBBYBOBBY64.

 

[jarsnstuff]

Numbers & letters on the base can have many meanings - mold number, plant location, etc. And yes, even the year of manufacture. It's anyone's guess.