Dating a warranted flask bottle
Other diagnostic tools must be used to date these items.
Shape is more indicative of function - i.e., what the bottle was used for or contained - but even that has a myriad of exceptions.
(The two products were from separate companies which were cross-town [Sacramento, CA.] rivals during the late 19th to early 20th century.
The author has also seen Star Bitters labels on Wait's bottles as well as both labels on the immensely period popular Hostetter's Stomach Bitters bottles!
See the Bottle Typing/Diagnostic Shapes page for more information on the subject..
And last, but definitely not least, is the fact that the art and science of glassmaking had a lot of glassmaker/glassblower induced uniqueness in the form of variations, errors, experimentations, and retrogressions.
This was almost universal with many beverage bottle types (e.g., soda, beer, milk) but was variably common with just about any type bottle - especially prior to 1920.
A substantial amount of bottle type specific information must be reviewed by a user to increase the probability of dating accuracy.
Additional reference materials outside of this website must often be consulted to narrow down the date of any item as far as is possible and to really get a "feel" for the history of the bottle in question.
Of course, soda & beer were reused up until quite recently.
The bottle pictured to the right has a Wait's Liver and Kidney Bitters label pasted over the embossing of a Star Kidney and Liver Bitters bottle!
Utilitarian items makes up the bulk of the bottles produced during the 19th century and first half of the 20th century. Bottles intended to be used once to dispense the contained product without much hope of return, though as noted in #4 above, many types of bottles were commonly reused during the 19th and early 20th centuries; or 2.