An Engine Order Telegraph Or E.O.T., Also Referred To As A Chadburn, Is A Communications Device Used On A Ship Or Submarine For The Pilot On The Bridge To Order Engineers In The Engine Room To Power The Vessel At A Certain Desired Speed. It Comes With A Knob At The Center Attached To One Or More Handles, And An Indicator Pointer On The Face Of The Dial. Traditionallly In Ancient Times And Use These Chadburn Telegraphs Required A Pilot Wanting To Change Speed To "Ring" The Telegraph On The Bridge, Moving The Handle To A Different Position On The Dial. This Would Ring A Bell In The Engine Room And Move Their Pointer To The Position On The Dial Selected By The Bridge. The Engineers Hear The Bell And Move Their Handle To The Same Position To Signal Their Acknowledgment Of The Order, And Adjust The Engine Speed Accordingly. General Commands Include - Full Ahead, Half Ahead, Slow Ahead, Dead Slow Ahead ,Stop, Dead Slow Astern, Slow Astern, Half Astern & Full Astern. Our Telegraph Is A Displaypiece Of The Original Device From Ancient Time. It Is Now Used As A Decor & Is A Perfect For Gifts Ideas & Perfect Memorable Navy Gifts For Birthdays, Anniversary Of Marines, Retired Navy Officer, Sea-Sailors, Seafarers Etc | A Must Have For Nautical Surfing, Exploring & Surveying Lovers. The Ship's Telegraph Is Designed To Send Information From The Control Room To The Engine Room Concerning The Ships Speed And Direction. It Features A Lever On Each Side That Moves In Both Directions. Each Time The Lever Moves An Internal Bell Rings. It Makes A Great Conversation Piece And Looks Amazing In The Family Room, Living Room, Office, Bar And Restaurant.