Harbison's California Adjustable Comb Hive: Patented by J. S. Harbison, January 4, 1859 (Classic Reprint)/fr-ca/harbisons-california-adjustable-comb-hive-patented-by-j.-s.-harbison-january-4-1859-classic-reprint/03BA5BF6-3CD0-480A-86D7-7660CA6AB27D.html03BA5BF6-3CD0-480A-86D7-7660CA6AB27D
Harbison's California Adjustable Comb Hive: Patented by J.S. Harbison, January 4, 1859