Andy from Foggy Streets of Salt and Rust posted some photos from the Alt in the 80's to his blog. He indicated that back in the day the Alt used to build custom touring tandems. Pretty rad.
For those not familiar the Alt was "the" cool shop back in the 80's. Geno, Hurl and a host of others cut their teeth at this famous shop. The "Alt rail" that Jesse and Mike rode on their fixies this summer was named for it's proximity to the store and the Alt posse who used to skate there. The Alt is also home of the gentleman who bring you Handsome Cycles.
That's Andy in the last photo in the cap.