The Royal Navy Long Service & Good Conduct Medal was introduced on 24 August 1831 and was awarded to all those non officer ranks who matched the demanding criteria for both long service (15 years+) and good conduct.
A Clasp to the medal was introduced during the reign of King George V and can be awarded for an additional fifteen year's service.
Please be aware that due to the way we collate, and cross reference our databases, some records will contain more information than that listed above.
Original Source: Book of the same name Douglas-Morris 1991
Original sources include: ADM171/203