Perfex Series 155 Magic Dial Thermostat
Here are photos of a circa-1944 Perfex Series 155 Magic Dial Thermostat, as well as the instruction manual.
Minneapolis-Honeywell Diaphragm Gas Valves
Here are the installation instructions for Minneapolis-Honeywell diaphragm gas valves, dated October 1, 1945. Thanks to Mike Zydiak for sharing this with us.
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