Over the years, Hall used a wide variety of backstamps to mark their product. Here are some of the more common marks

Most Hall pieces were marked, some with an embossed HALL, some with an applied backstamp, and some with both. The illustration at right shows six Hall backstamps. The explanation is as follows:

1. The earliest known Hall mark, used from 1903 to the early teens.
2. Used from the early teens to the late 20s. The words "Made in USA" are sometimes missing.
3. The most commonly found mark. Used from October 1930 until the early 1970s. The words "Made in USA" or a pattern name may be stamped below.
4. Used on all kitchenware produced after 1932. Sometimes has a pattern name stamped below.
5. Used on all dinnerware. It was modified for pieces produced for Jewel Tea Co. and Great American Tea Co.
6. This mark has been used from 1972 to present.

Occasionally a piece will be found with no backstamp. These are generally pieces which were seconds and were meant to be destroyed, but were instead carried home by employees or sold through the Hall Closet.

In addition, Hall would mark pieces with special backstamps for other companies, like

the DRIP-O-LATORS, or McCORMICK TEAPOTS.

There are literally dozens of different backstamps.

All in all, a very confusing thing for beginning collectors to figure out.