i dont collect clocks, but i have seen this clock on occasion at the many petro and swap meets i have attended. i believe this clock would have to be N.O.S. with original box to be near that price. i would say $100-$600 depending on condition and condition means everything. your typical pam clocks from the 1950's with petro flavor usually bring in the 400-700 range in nice condition!!!!
see me at Mason Dixon Gas,Spring Carlisle M114-115, and Hershey C4E-35.