Ken,
(maybe an obvious one)     Perhaps using the old patch and paint method would work for you and your client. This entails patching nail holes with a wall filler then painting over the sanded patches with a matched wall paint (flat finish paint work the best) and then using two Moore hooks and reusing the "d" rings on back of the art works. A heads up should be given to the sanding of the patches because of the "dust" particles created while sanding. The dust can be almost eliminated by a light touch with the filler and the use of a strong vacuum cleaner while sanding. Hope this helps.
 
Dan
----- Original Message -----
From: [log in to unmask] href="mailto:[log in to unmask]">Kenneth B Brown
To: [log in to unmask] href="mailto:[log in to unmask]">[log in to unmask]
Sent: Monday, February 12, 2001 11:47 AM
Subject: Hanging system for paintings

I'm hoping that someone can recommend a system for hanging paintings in a home, where oils in somewhat heavy frames are changed frequently, requiried heights in the same location therefore vary, and where the homeowner wants as "invisible" a system as possible.  Therefore, the old fashioned single brass rod with the screw adjustment will not do.  Nor does she want the ceiling molding with the brass S-clips with dual wires hanging down to each painting.
 
Does anyone know of a source of a good "invisible" or "semi'visible" system for a frequently rotated collection?   /many thanks / ken brown