Color postcard of a prize cluster of California "London Layers" raisins — a large, beautifully formed bunch of dried Muscat grapes, brown and wrinkled, displayed against a soft green gradient ground. The London Layer was a premium Muscat raisin variety, hand-packed in the San Joaquin Valley and exported internationally; California's raisin industry, centered around Fresno and the surrounding valley, had grown explosively from the 1870s and by the early 20th century dominated world production. Edward H. Mitchell of San Francisco — one of the great early California postcard publishers — produced a celebrated series of agricultural and industry cards promoting the state's bounty to the world, and this card is part of that tradition: California abundance made portable, mailable, collectible.

• Caption: 2326 — Raisin Industry, California. London Layers.
• Card no.: 2326
• Publisher: Edw. H. Mitchell, San Francisco, California
• Status: Unposted