HAMILTON & Co

[macs_07]

Trying to find some information and patent for this interesting lock.
Hamilton & Co patent, 3 Royal Exchange, London.
Have seen some mentions on the internet relating to safes and being a maker to the treasury and eccentric lever lock.

The bolt can be moved back and forth to cover the keyway.
On the upper right of the body is a square hole that a handle would fit to,
rotate the lever clockwise, this will push all the levers down and reset them to neutral and will also extend the bolt.
insert the key and rotate it 360 degrees and remove the key
rotate the knob anti clockwise and it will withdraw the bolt.

the levers are not sprung
the spacers between the levers are sprung outwardly to exert pressure on the levers and hold them in place.