This general information about Jacob sheep was provided by the Jacob Sheep Breeders Association.

Size: The Jacob is a small to medium size breed. Adult ewes range from 80 to 140 pounds, while rams will occasionally obtain weights approaching 200 pounds.

Coloration: Coloring is basically white with black or lilac spots randomly distributed on the body. At least 15% of each color must be present.

Horns: Jacob sheep produce 2, 4, or 6 horns in both ewes and rams. Ram horns can reach 30 inches or more.

Fleeces: The fleeces from Jacobs are a delight for handspinners and for the connoisseur of natural color. They are light and open, weighing between 3 and 6 pounds and having a stable length of 4 to 7 inches. They part easily, exposing a soft, medium wool with healthy luster and sheen. The average micron size is 34 and ranges on the Bradford scale from 48 to 54. Due to the spotting of these animals, the wool can be spun into a complete spectrum from white through gray/lilac to black.

Origin: Jacob Sheep are a very ancient breed that probably originated in Syria some 3000 years ago. Pictorial evidence traces the breed's movement through North Africa, Sicily, Spain, and on to England. Jacob sheep were imported into the U.S. for game parks and zoos around the turn of the century. Additional imports from Britain in the 1950s and 60s enhanced the genetic pool, at the time the breed was dwindling. Active preservation efforts saved what was left of the breed and established a healthy genetic pool which assures the breed's survival.

Summary: Handsome and hardy, the Jacob is ideal for the small flock owner or the large breeder. They are a small and efficient breed, allowing more sheep per acre. They are easily handled, rarely need veterinarian care, and show a greater resistance to foot-related problems and internal parasites. Ewes lamb easily and the lambs are up and nursing quickly. Carcasses are lean and flavorful, with minimal waste. Tanned hides and horn buttons are additional unique products from these sheep.

The American Livestock Breeds Conservancy (ALBC) has designated this breed as "Threatened".

CVM Romeldale
The Romeldale is an American fine wool breed, and the California Variegated Mutant, or CVM, is its multi-colored derivative. Both the CVM and the Romeldale are unique to the United States and are endangered.
The Romeldale was developed in California by A. T. Spencer in the early 1900s. Spencer purchased the entire contingent of New Zealand Romney rams that were exhibited at the 1915 Pan American Exposi-tion in San Francisco. He bred these rams to his Rambouillet ewes, with the goal of improving both the meat and wool qualities of his stock.
This group of Romney-Rambouillet crosses were bred for several years and selected for both wool and meat quality. They became known as Romeldales. Much of the establishment of the Romeldale breed was accomplished by the J. K. Sexton family during the 1940s and 1950s. The Sextons selected the sheep for high rates of twinning, maternal ability, and non-seasonal reproduction. Soft-handling wool was also a priority, as was fleece weight (ten to fifteen pounds) with a grade of 60s to 64s. The wool of the Sexton flocks was so highly regarded that for many years the entire clip was sold to Pendleton Mills.
During the 1960s, colored lambs appeared in the Romeldale breed. Glen Eidman, a partner of the Sextons, became interested in these sheep and linebred them for several generations, further selecting for fleece quality. He referred to this group of sheep as California Variegated Mutants, usually shortened to CVM.
Romeldale sheep are white, but the classic color pattern of the CVM is the badger-face, a light body with a dark belly and dark head. This pattern creates a range of shades of color on a single fleece. Selection has increased the range of colors to include gray, black, brown, and moorit. Fleececolors darken during maturation rather than fading as the sheep ages.
CVM and Romeldale sheep may be considered two parts of a single breed. With the exception of color, CVMs and Romeldales have similar characteristics. The sheep weigh 150-275 pounds. The rams are active breeders, while the ewes are excellent mothers, prolific and long-lived. Twinning and ease of lambing are considered impor-tant breed attributes.
The CVM and Romeldale sheep have never been numerous, and today they are quite rare. The breed's fleece quality and performance characteristics, however, make them useful for many production systems and valuable to handspinners and other fiber artists.
The American Livestock Breeds Conservancy (ALBC) has designated this breed as "critically rare".