This is a Tycos Recording Gauge manufactured by Taylor Instrument Companies, Rochester, N.Y., U.S.A. / Toronto, Can.
Notable details:
Marked with patents dated May 6, 1913, and June 3, 1913 — placing its likely manufacture in the 1910s–1930s.
Sturdy brass housing with classic industrial design.
Used for continuous recording of pressure, temperature, or other environmental data on circular charts — common in maritime, industrial, and scientific settings.
