Colt
Colour: Bay
Breed: Unknown
Type: Dartmoor x Polo and riding pony cross – riding pony
Foaled: 1919
Height:  Unknown

Sire: Silver Bullet (Supp.1916)
Dam: 3746 Sugar Plum

SNOW CAP Bay Colt Foaled 1919
Volumes 16 and 17 (1919-1920-1921) of The National Pony Stud Book
Dartmoor Section Mares

The only reference to Snow Cap is under his dams reference. I think he would have been a polo or riding pony.