The women's T-strap sandal was first popularized during the 1920s as women began to show off more of their legs and feet. The style featured a pointed toe with a strap that reached toward the ankle from the center of the toe to a horizontal strap circling the ankle. The style covered just the woman's heel and toes but otherwise showed a great deal of the foot, in keeping with the revealing styles of time. Typically the shoes had a one-to two-inch heel. The T-strap was one of the more popular styles for evening wear in the 1930s and early 1940s. However, by the mid-1930s the toe of the shoe became more rounded and the heel lowered, and by the mid-1940s the simple pump was preferred.
Mulvagh, Jane. Vogue History of 20th Century Fashion. New York: Viking, 1988.
Pratt, Lucy, and Linda Woolley. Shoes. London, England: V&A Publications, 1999.