The manufacturer identification code (MIC) of your craft identification number (CIN or HIN) is RKK. This MIC (RKK) stands for the company name Rks Boat Mfg Co which is currently Out of Business. This boat manufacturer code has other company names (RKK 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 (Rks Boat Mfg Co) is owned by Schmidt,rbt K and is located at 3433 Vera Way in Ceries state of Ca. It manufactured this vessel and placed your HIN or CIN on the hull. This Boat maker is not owned by a parent company. Rks Boat Mfg Co has started making boats, yachts or other watercraft as of 7/8/1985 and went out of business on (6/30/1988) in the following country: USA.
More details at the US Coast Guard.
The US Coast guard provides this comment about this watercraft manufacturer: Riveria Model / 15' Fblgs O/b Bass Boatmail Returned 6/88.