Powered Lobster Boat
The early powered lobster boats were open launches or power dories. This image dates to around 1905 and looks to have a double-ended reverse stern popular in recreational launches of the time. This boat might do 7 to 10 miles an hour, a far cry from today's boats, but they could operate in a calm with much less work than rowing. The steadying sail helps keep the boat from rolling while hauling traps.