...that sign once read 'Children Cry for Chas. H. Fletcher's Castoria'...here are some similar ones:

https://www.eatingintranslation.com/2012/03/children-cry-for-fletchers-castoria.html

...and an old photo showing a similar painted ad:

https://www.14to42.net/castoria1920.htm

Looking for better Gulf items: signs, globes, cans and paper - especially porcelain Gulf flanges, and Gulf A-38 & A-62 ad glass...