This bit has an interesting history, it is stamped with an outline of a kangaroo and the name "Kangaroo" - Kangaroo bits were developed by John Dewsbury in Walsall in the 1830's.
One of the cheek pieces is stamped "Watts & Co., Simla & Lahore" - these would have been the retailers, they are registered in various Indian directories between 1877 and the 1930's.
The bit itself has a straight mouth with eight cherry rollers.
It is a rugby pelham, there are additional loose ringed bit rings attached to each side of the mouthpiece which make the action of the pelham more like that of a double bridle, with separate curb and snaffle actions.
Dimensions : Mouthpiece 4½" (17.5cm) cheeks 7" (16.5cm)
Ref : bit472