What would have been in this bottle?

[Thetf2jack]

It’s shaped like a beer bottle but has a measuring embossment

 

[treasurekidd]

Does that bottle say "Certo" on it? It certainly looks like one, so my guess it either Certo or a similar products.

certo pectin bottle - Google Search

www.google.com

 

[Thetf2jack]

Does that bottle say "Certo" on it? It certainly looks like one, so my guess it either Certo or a similar products.

certo pectin bottle - Google Search

www.google.com

Nope, it only says 1/2 cup and 1 cup

 

[embe]

Some type of cleaning supply maybe? I had one kicking around and for some reason want to say Ammonia or Bleach.

 

[hemihampton]

I've dug a few of those over the years, not sure what they are but I think I left them behind.

 

[CanadianBottles]

I'm pretty certain they're pectin bottles. Probably a Certo competitor.

 

[sandchip]

I'm pretty certain they're pectin bottles. Probably a Certo competitor.

I agree. Just a label only variant.