From the Los Feliz Ledger, “The ‘Happiest Place on Earth’ started on Kingswell,” by Jean Luc Renault, Community News, February 2008:

LOS FELIZ—When Extra Copy on Kingswell Avenue opened in 1994, the staff knew nothing about the small storefront’s unique history.

About a year later, one visitor changed all that.

“An old woman came into the store and just started crying,” said Extra Copy’s manager Marine Ter-Pogosyan. “She told us she used to work here when it was Disney’s studio.”

Stumbling distance from the Dresden Restaurant’s parking lot, the storefront was the Disney brothers’ first standalone animation studio. But brothers Walt and Roy had been perfecting their animation on Kingswell Avenue for some time before that.

The only photo I could find of the Disneys with the store front fully visible in the background. Apologies for the terrible quality.

Also, a note about Extra Copy: they are a fine place to make duplications! Recommended.