1961 picture sleeve of The Lettermen with the sides_The Way You Look Tonight/That's My Desire. present in the Kreiter's Vocal Group Record Guide(the book not mentioned this sleeve) with a value of $10.
From 1961 to 1966 the group is listed in the book with eighteen singles but the above 45's is their most valuable recording.
Complete information at;http://en.wikipedia.org/wiki/The_Lettermen
To Listen or Download_That's My Desire. Side,please visit;https://www.box.com/s/9r4nvr29csplpok3bx6w
Or go to Youtube...