Thrust vector control pressure indicator built for the Gemini spacecraft, measuring 2˝ x 2.5˝ x 6˝, with the manufacturer's tag on top: "Indicator, Pressure, Serial No. 101B US, Lear Siegler, Inc. for McDonnell, Per MAC SCD 52-81708-23, Model No. 2700H." The front panel features dual meters monitoring "Stage 0 CP" with lighted "TVC" indicators. The port on the rear is labeled "J1." In fine condition.