This pair of barn door rollers were made by the Kidder Company and patented in April of 1879. Each half is heavy and supports a 3 3/4 inch wheel. The wheel is one-inch wide. The mounting bracket measures 12 inches vertically and 3 1/2 inches wide. The space between the wheel and platform is 3 inches.
The pair is in good condition, with no cracks or breaks. The wheels are loose. Total weight for the pair is 7 pounds, 4 ounces. Bolts are not included.