Fathers of Inventions

This week's objet d'eBay, trading cards found in 1915 packages of Will's Cigarettes (a foundation of today's Imperial Tobacco), feature inventions by men, mostly fathers because while necessity may be the mother of invention, most of the time the inventor turns out to be a father.

Fathers who have most recently joined the fraternity of "Look at How I'm Gonna Save the World" include a real Heman (California's Richard Heman, to be accurate) and a man tonsorially tested by his daughters hair, New Yorker George Stydahar.

Heman decided to face down the torturous tangles of his two daughters tresses and came up with the patent pending Orbit Brush, with bristles that disappear at the big tangles while they tease through the lesser snags. Heman, whose goal is to spend his days golfing with dad, has gone for podiatric relief, inventing a foot care salon for the shower.

How much will trading cards of the two be worth when it is their time for an eBay auction?