I have a photolitho of "persistence of time" signed in pencil and
numbered 9/300 .The paper is 24 12/16 by 34 inches and the print is 
20 12/16 by 29 4/16.I would like to know if Dali produced this print
and some idea of the value.

It is almost impossible to decide about the authenticity and/or value
of a work of art from a distance, without a possibility to examine the
piece. Even an art expert could not say "Yes, this is a print signed
by Dali himself" without at least inspecting the signature.

Scriptor

There have been so many spurious works placed on the market that are
purported to be limited editions of Dali lithos, that it is impossible
to sort them out, without submitting them to an expert, or to the Dali
Museum. See:

Dali aide seized on forgery charges
http://news.bbc.co.uk/1/hi/world/europe/330556.stm

hlabadie-ga