Bottle Hunting the St. John's River, and a What is it?

[Hogtown Hunter]

Took the boat out on the river today. It was a sunny, beautiful Florida day but just a bit windy. At least it kept us from getting too hot. Located a couple spots that had some bottles and broken glass. Most of it from the 50s. We were looking for bottles from 50 years earlier but you take what the river gives you. Found a couple Coke bottles from the '50s , a '55 Pepsi and a Cavalier Boot Cream jar. Then I see the neck of a small bottle sticking up from the sand. When I pull it up I see the odd shape of this thing
It has no markings except a 48 on the neck. I'm wondering what this bottle may have been used for? Perfume? Is the 48 a year? It would be around the same age as other bottles.
Also, most of the clear bottles I find have that brown shade to it from years in the tannin stained water. Is there anyway to clean that or is it just permanently that color now?
Thanks

 

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Perfume missing it's atomizer...

 

[Dug]

Also, most of the clear bottles I find have that brown shade to it from years in the tannin stained water. Is there anyway to clean that or is it just permanently that color now?
Thanks

Have you tried a soak Bar Keepers Friend and water? That is my go to for cleaning bottles and it won't hurt glass no matter what strength you make it or how long you soak it. After becoming frustrated with some carbon covered glass insulators that nothing else would work including acetone, BKF and daily scrubs with a green pad did the job. Made a believer of me.

If that fails to remove it then I think your last option is tumbling them or a quick soak in whink. I no longer do the latter as it is etches glass and hard to control.

 

[Hogtown Hunter]

Thanks DUG. I'll give it a try.