1843 9 Sept. 189/2 The price of the ordinary hack-caps made of straw was fourpence each.
1910 58 866/1 The bricks, during the drying, are protected from the weather by wooden roofs—termed hack caps.
1918 7/1 (advt.) H. Blacknell..Manufacturer of Hack Caps, Lewe Boards,..Ridge Tile Racks, etc.