An amputation saw made by Down Brothers of London for the War Office.
This bone saw has a 7 inch blade and a movable back. The handle is stamped with Down Bros. London and has the War office emblem – the broad arrow.
I understand that this dates to the late Victorian period and I found it in a catalogue of surgical instruments and appliances from 1885. You can view the page, from the University of Leeds, here: https://archive.org/details/b21503084/page/16
The amputation saw is in good condition although there is age related rust in various areas and many scratches and marks which indicate that it has well been used.
An amputation saw made by Down Brothers of London and issued by the War Office at the end of the 19th century.