Saving Old Seagulls

can anyone give me a estimated value on my new
motor. i bought it last week for $10 u.s dollars
and i was wondering what the value may be.
i cleaned it and started it today, it runs like a
dream and hasnt been run since 1985.
it is in very nice condition all lettering, paint,
and all working parts. only took 2 pulls to kick over.
before i sell it i would like to get a value on it and maybe
pass it on to my children

thanx
bill lloyd

HI Bill
Up here in Vancouver BC Canada Seagulls in good running condition (40 pluses or minuses/featherweights) seem to go for between $150-$275
Some people try to sell them for more but they seem to stay listed a looooong time
$10 USD is an excellent deal! That's about 3 - 4$ Canadian right?
I picked up a 40 plus recently for about $100 in decent shape and good running condition and I though it was a fine deal