Embossed Sauer's Extract Bottle.

 

Sauer's Extract Bottle.

Above is a Sauer's Extract bottle I found, probably from the 1920s or thereabouts.  I haven't narrowed the date range down yet but should be able to do that before long.

Embossing on Sauer's Extract Bottle.

It isn't a rare bottle, and unfortunately there is no glass maker's mark on the bottom.  The maker's mark often helps narrow down the date of a bottle. 

Below is a part of an ad that shows the same type of bottle with the paper label in place.

Sauer's Extract Bottle.
Source: See gjenwick.com link below.

Here is the link for a variety of Sauer's extract ads.

Sauer's Extract | Vintage Ads (gjenvick.com)

And here is a link for a timeline on the company.

Sauer Brands History: Founding, Timeline, and Milestones (zippia.com)

By the way, the Sauer's company is another Richmond, Virginia company.  As I've mentioned, a lot of the early 20th century bottles I've found around the Treasure Coast come from the East Coast of the U.S.  Not surprising.