Circa 1996, this is a 90 watt halogen lightbulb made by GE. It is made of very thick, heavy glass. It gets VERY hot while in use, and takes a very long time to cool down after being turned off. Over the years I have seen many people put these bulbs up for auction on eBay.com, thinking they might be worth something. I bought mine at a retail store in the 90's, when it was still new, so I can't comment on who might want to buy such a bulb. Probably just me, and I already have one! But, if you found one new in its original box, who knows...
There is a small halogen capsule inside this bulb. Early halogen capsules like this one can suddenly explode, usually towards the end of their life, and send shards flying everywhere. To mitigate this problem, early halogen bulbs have very thick glass envelopes, which would nullify the effect of the halogen capsule exploding. That is why the glass on this bulb is so thick.
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