I am offering a Smiths Vertical Speed Indicator, Model HS801. I had the tag, not sure where it is but it said: "Unit Received from Allegheny Commuter as repairable unit". It has a part number of WL201RCFA1. It looks clean and complete. As with everything I offer, this may be returned for a full refund for any reason.
Certification status, production status and maintenance status on this part is unknown. Buyer takes responsibility for determining suitability and legality of part installation.