MARSH BROTHERS INC HIN Decoder
Hull Identification Numbers beginning with ETU were assigned by the US Coast Guard to MARSH BROTHERS INC of QUINCY, MI. The builder is listed in the USCG MIC database. Enter the full 12-character HIN below for build date, model year, and serial — free, no account.
MIC
ETU
Location
QUINCY, MI
In business
since 1997
Status
Listed active in USCG records
MARSH BROTHERS INC hulls (1997–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Free · no account · the HIN is on the transom, upper starboard (right) corner
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MARSH BROTHERS INC HIN FAQ
What does a MARSH BROTHERS INC HIN look like?
It starts with the three characters "ETU" — the Manufacturer Identification Code the US Coast Guard assigned to MARSH BROTHERS INC — followed by a 5-character hull serial and a 4-character date code, 12 characters total. MARSH BROTHERS INC hulls (1997–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is MARSH BROTHERS INC still in business?
USCG records list MARSH BROTHERS INC of QUINCY, MI in the MIC database (registered 1997).
How do I decode the year on a MARSH BROTHERS INC HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. MARSH BROTHERS INC hulls (1997–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits. Enter the full 12-character HIN above and the decoder works it out, including the legacy formats.
Other builders in MI
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "MARSH BROTHERS INC HIN Decoder," carwhere.com/hin-decoder/etu, last verified 2026-06-12.