www.refrigeratedfrozenfood.com/articles/88657-tillamooks-oldest-cheddar-to-date

Tillamook's Oldest Cheddar to Date
November 21, 2014
Tillamook County Creamery Association, Tillamook, Ore., produced what is said to be its oldest cheddar to date.
Each block of the 4-Year Vintage Extra Sharp White Cheddar on your radar was naturally aged over four years to achieve a creamy, crumbly texture with larger, more developed tyrosine crystals and sharp flavor.
An 18-ounce block boasts a suggested retail price of $7.29.