hi! my grandfather recently passed away, I would really like to identify this bottle of poison (or an antidote) he kept.

my grandfather collected tons of bottles, but this one is really interesting to me. I can’t find anything about this specific brand, the age, distributor, or if it was a bottle of red precipitate poison or the antidote for it.

I would really, truly appreciate anyone who could give me some info on this.

(It’s originally from Nova Scotia canada) 🇨🇦 that’s all i know :(.