John T.Pergolizzi's bike @
http://www.wooljersey.com/
described as a "limited" but perhaps more of a custom build?
One clue might also be in the serial number, likely located on the underside of the BB. I believe that the limited models often had a "L" within the number, and the regular Eisentrauts often had a serial number starting with "E." Not sure if this is the case for all of them, but mine and a few others I have seen have a number like "E020973" for a bike built in 1973.
Ben Sanford
Falls Church, VA