Chatwood's in The Bank on Colledge Green (Dublin)

[Cepasaccus]

The steel discs are indeed in front of valuable parts of the lock, but as you can see on the back of the cover, there are two holes under these discs. The right hole is probably there to hold the pin where the levers are turning on. The other hole is probably where the stump comes into contact with the lever pack, but I can't see the purpose.



PS: Was the breaking of the spring on the back of the bolt a practical problem?