ID these Altec monitors?

[tfm1]

Hi all,
my 1st posting, though I've found this site a great Altec/JBL resource in the past. I have an opportunity to buy some speakers, a nice set of JBL 4312s and some unknown Altec monitors ...can anyone ID these studio monitors for me( (see photos)? Specifcally what components I can hope to find inside? They look related to the 9846 models48464,48463 with a 12 inch woofer, two balanced inputs and a "high frequency attenuator" dial on the front.

[Altec Best]

It looks like a homebrew cabinet with Altec components. 414,811 horn,but for the crossover and HF driver you will need to peek inside. Possibly 802C,D with a N800 Xo ?? The woofer looks like a 414. The only way to tell for sure is to open up the cabinet ! ;)

It looks like a facsimile of a 1218 with the front baffle board changed with the N809 XO removed and added the XLR inputs,N800 ? Not 100% sure though.

[Progneta]

I always liked the 811 with a single 414. With proper attn, sound great!