The Case of the Velvet Claws (1936)
Erle Stanley Gardner was already 43 years old and a partner in a successful California law firm when he wrote his first novel, "The Case of the Velvet Claws."
Gardner practiced at the Ventura firm until 1933, when The Case of the Velvet Claws was published.
She acted as secretary Della Street in The Case of the Curious Bride and for The Case of the Velvet Claws.
Gardner took this suggestion when he rewrote Reasonable Doubt as The Case of the Velvet Claws and made Della Street Perry Mason's secretary.
Eddie Acuff took over the Spudsy role in the 1936 film The Case of the Velvet Claws.
In 1963, Webb played the murdered owner of Spicy Bits, a gossip magazine, in the Perry Mason episode "The Case of the Velvet Claws."
The Case of the Velvet Claws (1933) - This is the first Perry Mason mystery published in March, 1933.
His films include the popular BBC seven-part series The Velvet Claw, a natural history of carnivores.
The Velvet Claw: A Natural History of the Carnivores, by David MacDonald, BBC Books, 1992.