Altec Lansing Speakers

I believe I have a pair of Altec VOTT A7's. They are definitely VOTT's because its written on the side!
The number 18047461 is on the back, they have N 800 D crossover units and 802C drivers on the horns. The woofers I haven't looked at yet. They look the same as the speakers in the picture from BigBusa. I obtained them directly from a old local cinema that closed down.
Any information would be much appreciated.
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