Help in dating this bottle? Found in Fort Worth, Texas 1969.

[Coca-Cola]

Antique store has this cool bottle. Has a sticker on the bottom noting it was found in Fort Worth, Texas 1969. To me it appears quite old. Three piece mold with a pontil? Any help in dating it is appreciated!

 

[nhpharm]

I find that style in Galveston in circa 1860's stuff, so definitely pretty early for Ft. Worth!