Mercury Merc 500 powerhead mounted on a Mercury Mark 40H Quicksilver tower and with a Mark 40H gear case. Serial number 835625. Has a black wrap and a Mark 55 serial tag with a KD magneto, KA18A fixed jet carbureators, factory seal. The gear case has been shaved. The water tube tab on the mid section has been removed. We quote 10 days for shipping since we wish to provide the proper construction of the wood crate prior to shipping.