Words and pictures from “Electric Lighting for Marine Engineers” by Sydney F. Walker, undated but approx. 1890 (a bookseller lists an 1892 edition). Lots of steampunk potential here!
“Fig. 95 shows an outside view of an ampère meter made by the Edison-Swan Co.” (p. 220) The units for measuring electric current today are called amperes, or amps, and a device for measuring current i [...]
“Figs. 27 and 28 show switchboards suitable for use on board ship. Fig. 27 shows the usual arrangement of circuits on board a “tramp.” It will be understood, of course, that there should be an ampère [...]