Marble's Ideal: Webster Marble introduced the Ideal Hunting Knife in 1899, and it was arguably the first knife designed for the sport hunter. Marble's Ideal was, in fact, ideal, and made of excellent steel. Marble utilized a wide fuller, or groove, in the blade to save weight. The Ideal was around for a long time. It was made on and off from 1899 to 1974. Then it went into eclipse until 2007, when it was reintroduced. Old Ideals in good condition and with their original sheaths can be worth a lot of money; collectors will pay you $10,000 for some examples - not bad for knives that originally sold for $1.25.