Need help dating a "Double Cola" bottle

Hi everyone,I was planting bulbs in my yard the other day and came across a deeply-buried glass bottle. I dug it out and cleaned it, realized it was an old soda bottle, and decided for the sake of curiosity that I'd try to determine how old it was. The pictures are attached to this post...if they don't show up, I'll try again. It's a clear glass bottle about 9.5 inches tall, seam running along the side all the way up. Several decorative rings around the neck (I believe "embossed" is the term? - it's part of the glass itself, as in part of the mould/cast), "Double Cola" below that, then more decorative rings on the bottle's "shoulders". On the front of the bottle, very faintly (perhaps from an old sticker or something) it says "Double Cola," with the words "Great Drink" above and "A Mighty Flavor" below in a logo, then some even fainter words I can't read (they include the word "flavor"), and at the base is embossed G1332 or C1332. The back of the bottle has very faint writing like the front, and as best as I can read it says: "A real carbonated cola beverage containing the extractive matter of kola nuts and coca leaves (decocainized) blended with natural flavors." Below that, "Double Cola Bottling Co. Nashville, Tenn." At the bottom of the back of the bottle, right above the base, is a tiny raised square. The bottom of the base has the letter "I" inside a circle with a triangle on either side. The number 9 is to the left of this symbol, and to the right and below it are either the number 1 or the letter "I" (I'm thinking it's an "I", since they have periods next to them). Below this, it says "Pat. Applied For Duraglass." I'm happy to take close-up pictures of anything that might be relevant. Thank you in advance for your help!

That bottle is made by Owens Illinois Glass Co. and is dated 1941

Your bottle had a pyro glaze label ,that has faded away long ago. If you don't care that all it has is the shoulder embossing ,that's fine but as far as a collectable ,its not worth much.

Thank you both so much for your helpful and prompt replies! Canadacan - If I may ask, what tells you that it's 1941? I know the "I" symbol on the base means it's Owens Illinois Glass Company, I was just wondering how you determined that year. My house was built in 1929-30, so I assumed the bottle was very unlikely to be any older than that (and that would be at the far end), but had some research-trouble figuring out anything more specific than that. sunrunner - Yeah, I assumed that due to its condition (not helped by the scratches caused by my own gardening tools in an effort to get it out) it wouldn't be worth much, but that's OK. It's still fairly cool having such an old glass bottle that I just randomly found in the dirt. Not sure what I'll do with it yet - stick it on a shelf somewhere, probably - but I'm going to keep it! Thanks again y'all!

I don't see anything that makes me think ACL (Applied Color Label is a term for painted labels) but more a paper label. Maybe that's my eyesight.The Owens marking system can be found HERE. The dot after the 1 is the key.

PS: Patent applied for may be for the bottle itself or for Duraglas. I think that was the first year they used the embossed tradename. I might have to look that up.

Thanks for the link to the Owens marking system! That was very helpful. I attached a close-up picture of the front of the bottle. The label is very, very faint...and the writing on the back of the bottle is even fainter; I couldn't get it to show up at all in a picture. I don't know if that's helpful or not for figuring out what kind of label (ACL vs. paper) it had, but there ya go. Let me know if you find out about whether or not it was the first year they used the embossed trade name Thanks again!

Ahh great guys! you did all the Work!...lol, I would think the patent applied for refers to the Duraglass. the earliest it could be is 1940 for the used of the Duraglass name...maybe someone has a bottle with a date code for that year with the DG name. Hang on a second I think I have one without ...they may have transitioned in 1940 so some bottles may have it from a latter point in the year

This is the bottle it's a NDNR Tipperary ale dated 1940...no Duraglass. I know it's not soda just for a reference. Very tough to make out but the I is the 'serifs' style. [attachment=tipperary1.jpg][attachment=tipperary.jpg]

Okay, I see the faded ACL on that last one, Thank you.Good eyes Jim![]