What is a springfield single shot bolt action 410 shotgun model 951 worth?

I HAVE A SPRINGFIELD MODEL 951 THAT IS IN ALMOST NEW CONDITION THAT I GOT FOR X-MAS WHEN I WAS A KID AND IT WAS OLD THEN THAT WAS ABOUT 15 YEARS AGO I RECENTLY HAD IT APPRAISED AT A LOCAL GUNSMITH SHOP THAT DEALS WITH USED AND NEW FIREARMS AND THE GUNSMITH TOLD ME THAT IT HAD BEEN YEARS SINCE SEEING ONE OF THESE GUNS AND HE TOLD ME THAT THEY WERE GENERATED FROM 1951-1963 OR 1964 ANYWAY HE TOLD ME THAT I COULD EXPECT TO GET ANYWHERE FROM $150.00-250.00 JUST BECUASE OF THE AGE AND NOT SEEING ANY OF THEM VERY MUCH ANYMORE. GOOD LUCK FROM Michigan