Konstantin, Leonid Shishkin (gallery Shishkin), after the death of Academician Nalbandian DA (mid-90gg), bought all that you can archive, and now has the largest collection of his paintings, exhibited little, holds exhibitions. Once purchased, all worth a penny, but now?? (One picture Nalbandian D.A.potyanet average amount paid by Leonid probably in the 90-ies for the whole huge collection).
http://www.ng.ru/antiquare/2006-10-1...albandian.html