J.R. Watkins Co. old glass bottle value?

[antlerman23]

i have a rectangular glass bottle that is 8.25'' tall, has "J.R. Watkins Co.(in fancy cursive) REG. U.S. PAT. OFF." embossed on the front and has the diamond I makers mark from the illinois bottle company. is this worth anything?

 

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[iowatreasure]

I have 2 bottles exactly like that along with a smaller glass bottle that has no markings that were found when excavating for a new building. I wish I could tell you, but unfortunately, I'm in the same boat.