AR2a,AR3a and AR4a STEREO Speakers (Bothell)

All together, I have 3 pairs of speakers, Acoustical Research.
These are all from the 1960's-70's All in excellent condition, haven't been in use for years.
These are very rare and very collectible.
These AR Speakers are rated as some of the best speakers ever.
Google will provide measurements.
I'll only sell in pairs.
The AR3a's have SOLD.
The AR2a's and AR4a's are $450.
Each pair.
Looking for best offer.