Help Identifying Wagner Ware Sydney -0- W/Heat Ring Set

[EBailey]

I'm a Novice but avid Cast Iron Collecter needing help collecting a set of Wagner Ware Sydney -0- with Heat Ring (See attached Image) cast iron cookware.

Currently have the following:
5C
8B

Would like to collect "a matching set" of these and dont know if they were even sold in a set.

The image shows a "8M" version with much straighter sides but presents the correct logo I am interested in collecting.

Any information would be appreciated.

[Doug D.]

Collectors sometimes refer to acquiring a "full set" of a maker's skillets, as in sizes 2-14. But they don't appear to have ever been sold that way. Sometimes a limited grouping of the most popular sizes would be seen advertised, such as a 3, 5 and 8 for a single special price. The letters on the skillets shown/mentioned are not significant as to their relation to one another.

Related: http://www.castironcollector.com/numbers.php

[EBailey]

Ty Very Informative