Yes! If you peal back the cloth, you should find paper wrapped wires...Paper!View attachment 1147054 View attachment 1147055
I am digging thru Bob's pics and thought of your switch.
These are photos taking in a house he helped restore back in 2007 I think I read. The house was built in the late 20's.
cloth covered wires and ceramic isolators. Crack pipe tubes thru the heart pine studs. industry standard in the 20's/30's... fire hazard maybe?