Monetarily, anywhere from 5 bucks to 50 bucks or more -- depending on the condition, i would guess. HOWEVER, to me, it's priceless, because there simply IS nothing like homemade mayonnaise! Before I had one of the Wesson mayo makers, i made it from the same recipe, handed down from grandmother to son & daughter-in-law to daughter ... commercial mayo just doesn't get it, once you've had your own homemade! sooo.....
About $450.
50-300 usd
50-500 usd
100-1000 usd
50-250 usd
100-400 USD
100-450 USD
100-300 USD
100-1000 USD
100-900 USD
100-500 USD or so
50-500 usd