Alternative preliminary design and finished drawings for an overmantel for the back drawing room, 1770-71, unexecuted (3)
Neither of Adam's two designs for the back drawing room overmantel mirror frame are known to have been executed, and they are not listed in any inventory.
Harris has noted that the second design comprises Adam's earliest known use of terms on a mirror frame - a motif which he repeated during the 1770s.
Within the National Trust drawings collection at Osterley Park there are designs for a pier glass and a girandole for the back drawing room. Six girandoles were executed, as was the pier glass, although according to Harris, the unusual rounded corners suggest that in this instance Adam was reworking an older frame.