Besides, that might have restricted those guys to the load side of the transformer... but not much more. That means the in-house wiring would have been as bad as anything else.

Various light sockets and adaptors:
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Old bell buttons, some of them fairly weird
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1910 all electric kitchen and panel. While the fuses strongly ressemble Diazed fuses they actually aren't. Diazed fuses consist of two parts (the screw cap and the actual fuse) whereas these are one-piece like US plug fuses. They have the same Edison thread though and seem to fit Diazed sockets. The tip diameters are different, I've seen such a 6 amp fuse and the tip diameter is close to a 25 amp Diazed.
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Various household items - panels, meters, vacuum cleaner, floor buffer, telephone, door bell,...
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The large panel to the left is a servants bell. Several flip signs indicate where someone rang for a servant. Back in the day fancy houses had a bell in every room.

Everything needed to wire a house in 1910... isolators for exposed knob&tube, switches, sockets, conduit, boxes,...
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This seems to be a switched MV UG to OH connection point.
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