Elvin Jones

Per listing on Don's Drum Valult, a 1990's Yamaha kit authenticated as belonging to Elvin featured a 14 x 7 Elvin Jones Signature Snare:

The set includes the complete set of custom cases and a complete set of Elvin’s Yamaha hardware as seen in the photos. The Zildjian cymbal set is not included but available for purchase separately. 18×14″ bass with “Elvin Jones Jazz Machine” logo head, 14×7″ Signature Model snare, Serial # 0045, 12×8″, 13×9″ toms, 16×16″, 18×18″ floor toms.

Per the engraving on this Stainless Steel Drum, it was specifically made for Elvin Jones by Keplinger.

The size and other details are chronicled by Donn's Drum Vault who have been entrusted by Elvin's Estate to catalog, authenticate, and sell the mountain of drums Elvin left behind. Per Donn's Reverb writeup:

This drum was custom made specially for Elvin Jones in 1978 by drum maker Gregg Keplinger. This is the first actual production model of the legendary Keplinger steel pipe snare ever made (serial #0001). This is also the first of several snares Keplinger made for Elvin throughout his life.