philatelist

from WordNet (r) 3.0 (2006)

philatelist
    n 1: a collector and student of postage stamps [syn:
         {philatelist}, {stamp collector}]

from The Collaborative International Dictionary of English v.0.48

Philatelist \Phi*lat"e*list\, n.
   One versed in philately; one who collects postage stamps, as
   a hobby or for investment; a stamp collector.
   [1913 Webster]