The "Audio" magazine annual equipment directories for October, 1985, and October, 1986, list them at $1600/pair, presumably in the standard wood finish.
A 1991 Orion blue book I have lists them as having sold originally at $2050/pair in walnut & oak, and at $2350/pair in rosewood. What year of manufacture that applies to is not clear, as the only year of manufacture that is indicated is 1977.
Hope that helps. Regards,
-- Al