Griswold Skillet Griddle

Happy Memorial Day!
Love the site

I have a Griswold Skillet Griddle standard large logo, but no Erie or Erie, PA.
Any ideas on a born on time frame?

The smooth bottom LBL #108 or #109 skillet griddle, shown on page 39 of the blue book, was made in the 1930s. Like the New England griddle on pg. 38, there is no Erie designation. The later small block logo versions added "Erie, PA".

Thanks Doug.
I plan to get the two books, but I can't seem to stop buying cast iron long enough to get it done...lol
Thanks again for the effort you put forth in providing the services for the site.