What model Altecs are these?

Thanks all.  This was a big help.

Quite possibly. Early Valencia's. I had the later version Valencia. The 846-B. It was an upgrade driver wise but had a plain, large walnut veneered box with two large ports on the front. It was the home version of the Altec A-7 system, or more commonly known as "The Voice of the Theatre." (VOTT)

Altec Valentias

+1 mr_m

641s?

They do look like they have Vott components. the horn looks like the 811 model, though not sure because I can't see the front of the horn. the wooden speaker itself looks somewhat like an early 846-A Flemenco. Just my observation. Could be totally wrong here. Hope this would be of some help to you.
Cheers,
Tim