Citation - New York Mercury (Gaine): 1767.03.30

NYM(G.767.031
30 Mar 1767:63 (804)
To be sold very cheap, a beautiful clavecort, and organ
joined together, that can be played with or without the
organ, and is very proper for learners; the organ and
clavecort can be both played at one time, with one sett of
keys; it will be sold much under the value.  For further
particulars enquire of Peter Boufman, organist, of the
Dutch-Church, in the street between the French and new
Dutch-Churches.