These are gilt brass spurs with steel inserts which would fit into "boxes" in the heel of the boot.
The necks are curved in a swan or goose shape.
The rowels have many small teeth.
There are decorative screw heads at the end of each arm.
The spurs are not stamped with any maker's name, the central prongs are faintly stamped "Left" and "Right".
They are in good condition with a few surface scratches.

Very similar spurs can be seen in Charles de Lacy Lacy's 1902 book "The History of the Spur"

Internal width 6cm (approx 2¼"), total length 10cm (4"), rowel 1.8cm (¾")
Weight : 139g (5oz)

Ref : spur547