The manufacturer identification code (MIC) of your craft identification number (CIN or HIN) is PLY. This MIC (PLY) stands for the company name Plymouth Boat Works which is currently Out of Business. This boat manufacturer code has other company names (PLY sometimes goes by these name(s) if applicable: Polly Bros Inc (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 (Plymouth Boat Works) is owned by Michael Mccue and is located at 57 Wellington Road in Plymouth 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. Plymouth Boat Works has started making boats, yachts or other watercraft as of 9/29/1995 and went out of business on (10/2/1997) in the following country: USA.
More details at the US Coast Guard.
The US Coast guard provides this comment about this watercraft manufacturer: Polly Bros Inc 1133 Chestnut St Philadelphia Pa 19107 Oob 03/16/78. 10/02/97 Mail Returned No Forwarding Address.