.8 KVA light plant
This is Fairbanks Morse "Z" engines for home
electricity and pumping.
Fairbanks Morse "Z" engines were the first to offer home electricity.
Over 250,000 "Z" engines were sold in America by 1920.
An extensive market for the engine was also developed worldwide.
from a fairbanks morse web page by James Kolanowski
FM03 and fmo3-org
1927 Fairbanks Morse
Type H 32 volt DC
left engine: 750 watts right engine: 1500 watts
Thanks to Gary Lund