ith the Danes in the time of Alfred the Great, ninth century.
It is also shown in the sculptures of Karnak, in Egypt.
The battle-axe of the Scythians in the time of Herodotus was double-bitted.
It is the Sacan sagaris.
Seylax, an historian of an age preceding that of Herodotus, compared Egypt to a double-bitted axe, the neck which joins the two heads being at the narrow part of the valley in the vicinity of Memphis.
The double-bitted axe is found in the tumuli and barrows of North America.
It is in three forms: 1, with a circumferential groove for the occupation of the withe or split handle to which it is lashed; 2, with an eye traversing the head; 3, with a socket for the handle.
See axe; battle-axe; hatchet.
（Nautical.) A block with two sheaves which are ordinarily placed on the same pin, but rotate in separate mortises in the shell.
Other double-blocks have the sheaves arranged one above the other.
See long-tackle block; shoe-block; fidd