any ideals on this owens bottle

[dollarbill]

hey all i know the owens bottling co. made bottles for a lot of co. but any ideal about this one has the square with the o in it on the bottom. its triangular shaped an as you can see has the co. name on two of the three sides anybody know ??? thanks for yalls help bill.

 

[Trying not to break it]

hi dollar bill, the o in a square mark used c 1911 - 1929. possibly a medicine bottle. bottles that are shape diff. are neat, rhona

 

[madman]

ok guys ive wondered my self about these bottles, what were they used for? one time i dug one it had a tooth brush inside it, but im thinking some kind of powder check out pic mystery to me??? the metal cap has shaker holes in it mike