Depth gauge for conning tower and captains stateroom, 10" diameter bezel, the glass face is 9" diameter, the dials are 8-1/2". We think these are called 8-1/2" gauges. The scale should read 17-175 foot for the conning tower, and 0-600 foot for the captains stateroom and control room dive station. They were usually built by either US Gage or Ashcroft, either would be acceptable. Note that the 15-165 foot shallow water gauge in the photo above is on USS Cod in their conning tower and would probably be just as likely at 17-175 foot listed in our drawings. In a similar way, we have found a 13-650 foot deep gauge that would be acceptable, or 13-600 foot, instead of 0-600 foot for the commanding officer's stateroom and the control room dive station.
We also need the two valves used for sea pressure and purge for the CT.
We would also like to find an extra max. 165 foot for the Roncador conning tower that is in storage.