3iv clear medicine bottle

R_S

Need help to identify clear 3iv medicine bottle with ounce increments on left side and cc increments on right side. It is a cork enclosed bottle, but no cork. It has the word "owens" on the bottom with the numbers 13, 12, and 9. It also has another unknown mark on bottom. Thanks.

historic

The universal info about this type of bottle can be found in this previous post:

https://forum.antiquebottles-glass.com/discussion/comment/4272

Yours specifically has the Owens Illinois mark on the base - this is the glass manufacturer. It is possible to date many O-I bottles by their markings. See Bill Lockhart's incredible research here:

https://www.blm.gov/historic_bottles/pdffiles/OwensIll_BLockhart.pdf