Thanks for the reply. 
Do you sort by length of time listed then tootle down the list to find the old pages?
As it happens I've had quite a bit of pure luck with EBay lately.  The Management is bedroom redecorating and wanted to fit some rare small sketches around a mirror.  These were a group of 4 limited edition individually coloured images of sailing barges.  She had given 2 to my father and when he toppled of his perch she tried to get then back but 1 had already been snatched. 
20 years later  I put in a speculative search and it came up with a set of 3 - which just happened to be the 3 missing!!  What chance ??

Vince
 

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