The manufacturer identification code (MIC) of your craft identification number (CIN or HIN) is DLV. This MIC (DLV) stands for the company name Sea Island Dory which is currently Out of Business. This boat manufacturer code has other company names (DLV sometimes goes by these name(s) if applicable: , , , 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 (Sea Island Dory) is owned by M Henneman and is located at Po Box 29 in Sullivans Isl state of Sc. It manufactured this vessel and placed your HIN or CIN on the hull. This Boat maker is not owned by a parent company. Sea Island Dory has started making boats, yachts or other watercraft as of 6/12/1980 and went out of business on (5/31/1983) in the following country: USA.
More details at the US Coast Guard.