Photograph of a 2-year old sow by a Berkshire boar and cross-bred sow. 'The original stock was produced by a Berkshire boar and Country sow.' Part of the Survey of India Office, Calcutta, March 1903.

Photograph of the Berkshire sow, "Southwon Rose" standing in a bed of straw in the late 19th or early 20th century.

Photograph of a Cumberland sow standing in a pen feeding in the early 20th century.

Photograph of the Curly Lop-Eared Lincoln sow, "Midville Bess II" that was the winner at the Lincoln Show in 1906.

Photograph of the Duroc-Jersey sow, "Brookwater Lass D" (218148) standing in a farmyard next to a stone barn that was bred by Professor H W Mumford, Ann Arbor, Michigan; sold for $2200 to Thomas Johnson of Ohio in the International Duroc-Jersey sow sale on December 3, 1918.

Located in Roslin Institute Staff Papers 1994. Part 2.

Photograph of an Essex sow in the early 20th century.

Photograph of a Large Black gilt standing in a pig pen in the late 19th or early 20th century.

Photogrph of Large Black gilts in a field with a man standing on the right. The text beneath the image reads, 'First at the Royal Agricultural Society's Show, 1905. Bred by Hy. J. Kingwell, Great Aish, South Brent, Devon.'

Photograph of a Large Black sow that was a first prize winner in the early 20th century.