What is this? Fire grenade?

[Ryan]

My dad recently found this with some bottles that he traded with a guy that didn't know what this was either. It is 3 1/2 inches in diameter and 4 1/2 inches tall. Looks like a four piece mold (2 on the neck). It has really thick glass on the bottom and is a light olive or yellow olive color. Is this a fire grenade? Thanks for any help.

 

[Ryan]

Second pic

 

[Ryan]

third pic

 

[Ryan]

last pic

 

[2find4me]

Yes its a fire extinguisher grenade.
Here's 1 that sold on e-bay: http://www.ebay.com/itm/RARE-ANTIQUE-GREEN-GLASS-FIRE-EXTINGUISHER-GRENADE-VINTAGE-BOTTLE-FIRE-FIGHTER-/230840458338?pt=LH_DefaultDomain_0&hash=item35bf29dc62&nma=true&si=U1RUjPXNjA30xbjUctWudGMx7zY%3D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557

 

[cowseatmaize]

I don't agree but have no clue what it is.
I guess with that said I should say maybe.

 

[Asterx]

Interesting looking thing... How thick is the glass? I wonder about some of the designs of fire grenades. It seems they would have designed them to have "fairly" thin walls so that it wouldn't require a husky man putting all his weight into throwing it directly downward upon a concrete surface to burst it releasing its "fire fighting" patented liquid...

 

[LC]

That seems to be a bit small for a fire grenade to me, I could be wrong though . I can't give any suggestion as to what it could be either .