Not the same as Colnaghi (Gallery) in N.Y. The following heading for an earlier name is a valid AACR2 heading : Paul & Dominic Colnaghi & Co. P. & D. Colnaghi & Co. apparently merged with Obach & Co. to form P. & D. Colnaghi & Obach. The name P. & D. Colnaghi & Co. was later resumed.