noun Chiefly British.
Examples from the Web for double crown
Historical Examples of double crown
The cone must be held on, with not more than two thicknesses of double-crown.
Dip this into a solution of gum arabic or thick dextrine, and rub it over a sheet of double-crown.
Paste the edges; lay half-a-quire of double-crown, or of blotting-paper, flat upon the table, to roll on.
Be careful that the corners are perfect; a strip of double-crown may be pasted over them.