- Engine Order Telegraphs-

Engine Order Telegraphs, or EOT's, are used to send a signal from the pilot or captain to the engine room with instructions. Each one is different and the below description is a generalization. These EOT's are literally one of a kind.
This bloctube telegraph stands about 4' high, is solid brass, and is of English make.
These Japanese Telegraphs have brass heads and stand about 3 feet tall. With these nautical artifacts, you can "send a signal below" in your own home!

Here's a large Chinese EOT.