"Wagner" Sydney -o- griddle

Does anyone know the dimensions of a Wagner 1147 long griddle?

Catalogs list 7-5/8" x 16-3/4". It's not clear if that's inclusive of handles.

Thank you , that is close enough. I am probably going to buy one it is in great condition ,flat ,no warping, no pitting! Do you know what years it was produced? I am guessing around 1890 or close?

The Red Book describes the 1147 as a #7 Long Griddle. Unfortunately it has no estimated manufacturing dates. It does have details on an 1150 (#10 version of your griddle) dated 1930's-1950's. That's a reasonable estimate for the 1147 as well. It can't be older than the early 1920's because that's when Wagner started using catalog numbers.