Bottle Found with Mark on the Bottom?

[IndianHead97]

Hi Everyone!

I was helping plant some trees today and when we were digging the holes, this little bottle popped out on the side. It's amazing we didn't smash its with the shovel and it came out looking very nice! I'm curious if anyone knows what this bottle was used for, it's age, or anything else interesting about it! It has some marks on the bottom that say "k" and "34" with 7 interestingly placed dots.

 

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[ticndig]

It looks like an early laundry bluing bottle to me . It must of had a paper label at one time. the numbers on the bottom are often related to the glass maker and not the product.

 

[Tony in SC]

Looks an old battery acid bottle used for early DC light systems. I have one the same size that has Edison on it?