It was pretty rusty when I got it, but it has cleaned up nicely, although I'm still working on it.
I've been dying to figure out how old it is, but lack of identifying marks makes it pretty hard to identify the manufacturer.
The real story is slightly more complicated and is quite common when small family operated business grow into large corporations.
Two other brothers, William and Louis, were added to the mix in 1891 which triggered the beginning of Wagner Ware cast iron cookware.
With the momentum of population growth and expansion, the Wagner brothers had a market ripe for growth and built the most modern and technologically advanced manufacturing facility for casting iron at the time.
The Randall Corporation purchased Wagner Manufacturing in 1952. bought Griswold on March 29, 1957 and then sold it in December 1957 to Randall who already owned Wagner.
Effectively, the Griswold manufacturing plant in Erie, Pennsylvania was shut down in 1957 and any Griswold cookware made after this period was out of the Wagner Manufacturing Sidney, Ohio plant.
This was the beginning of the end of the high quality cookware that both, Griswold and Wagner, were known for.