The manufacturer identification code (MIC) of your craft identification number (CIN or HIN) is DGM. This MIC (DGM) stands for the company name Dr. Glass Marine which is currently Out of Business. This boat manufacturer code has other company names (DGM 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 (Dr. Glass Marine) is owned by D Muckerheide and is located at Po Box 951 in Oak Bluffs state of Ma. It manufactured this vessel and placed your HIN or CIN on the hull. This Boat maker is not owned by a parent company. Dr. Glass Marine has started making boats, yachts and other watercraft as of 5/10/1976 and went out of business on (1/26/1983) in the following country: USA.
More details at the US Coast Guard.