Kollsman Airspeed Indicator PN 586BK Century Instrument 40-250mph 200 knots READ Click here to purchase or contact the seller of this item on eBay
Current Price: 99.99 USD

Unsure if this is the exact part number, but it is the closest I can find.

Found wrapped up in this century instrument box and you can see it has the stamp on the back that looks to be remanufactured/ refurbished by century instrument.

Item is untested and working condition is unknown. Sold as is. Found in a storage unit with other aircraft parts that have been sitting since 1997.