My first reaction was Joy dish washing detergent but I went back to old advertisements and found no bottle like yours.
I am fairly sure this is a household product bottle - cleaning, soap, possibly a food product but cannot say for sure since I have never seen one like it.
My approach to 20th century bottles is to browse the internet and esp. eBay for advertisements but usually I have some clue to go by...here we do not.
Another approach is to review vintage glass bottle catalogs for clues.
Comments
I am fairly sure this is a household product bottle - cleaning, soap, possibly a food product but cannot say for sure since I have never seen one like it.
My approach to 20th century bottles is to browse the internet and esp. eBay for advertisements but usually I have some clue to go by...here we do not.
Another approach is to review vintage glass bottle catalogs for clues.
https://sha.org/bottle/oi1933.htm
https://sha.org/bottle/igco1920.htm
1906 might be a bit early, not sure...
https://sha.org/bottle/igco_1906.htm
https://sha.org/bottle/igco1926.htm
Do let me know what you discover!!