The manufacturer identification code (MIC) of your craft identification number (CIN or HIN) is SDH. This MIC (SDH) stands for the company name Southern Ski Boats which is currently Out of Business. This boat manufacturer code has other company names (SDH sometimes goes by these name(s) if applicable: Stardust Marine (oob), , , or ). This could happen if the US Coast Guard reissued the MIC to a new company after the first went out of business.
This company (Southern Ski Boats) is owned by Cecil R Roberson and is located at 2253 Johnstown Road in Chesapeake state of Va. It manufactured this vessel and placed your HIN or CIN on the hull. This Boat maker is not owned by a parent company. Southern Ski Boats has started making boats, yachts or other watercraft as of 1/25/1995 and went out of business on (11/7/2005) in the following country: USA.
More details at the US Coast Guard.
The US Coast guard provides this comment about this watercraft manufacturer: Sdh Was Stardust Boats, 5461 Eastside Road, Redding Ca 96001, Type 13, Mso Sfc. Oob Per Ppg 11/7/2005.