Image MV Farringford, engine order telegraph, bridge

MV Farringford, engine order telegraph, bridge
MV Farringford, engine order telegraph, bridge 
 A common site on ships that is familiar to even us non-mariners is the classic brass engine order telegraph (EOT) device. It is a device used by the person manning the bridge to communicate with the engineman down below in the engine room. It is connected electronically to its twin down below decks and rings a bell when an adjustment is made. However, this one is a little different without the usual markings, can anybody nautical please educate me? 
 Keywords: MV Farringford engine order telegraph bridge EOT
MV Farringford, engine order telegraph, bridge 
 A common site on ships that is familiar to even us non-mariners is the classic brass engine order telegraph (EOT) device. It is a device used by the person manning the bridge to communicate with the engineman down below in the engine room. It is connected electronically to its twin down below decks and rings a bell when an adjustment is made. However, this one is a little different without the usual markings, can anybody nautical please educate me? 
 Keywords: MV Farringford engine order telegraph bridge EOT

A common site on ships that is familiar to even

us non-mariners is the classic brass engine order telegraph (EOT) device. It is a device used by the person manning the bridge to communicate with the engineman down below in the engine room. It is connected electronically to its twin down below decks and rings a bell when an adjustment is made. However, this one is a little different without the usual markings, can anybody nautical please educate me?