May be (mostly NI) but extends from Borneo to Aden and some unpleasantness in between as well as NI. Was initially (unofficially) referred to as the Borneo GSM.
Indeed so
Shack 37, for completeness the others are:
Borneo, Radfan, South Arabia (the Aden one), Malay Peninsula, South Vietnam! (Australian Forces only), Dhofar, Lebanon, Mine Clearance (Gulf of Suez 1984), Gulf, Kuwait, N Iraq & S Turkey and Air Operations Iraq,
A total of 13 clasps; officially the maximum awarded to a single individual has been 6, but that is likely to exclude SF.
And of course, the issue of the medal and or clasp for NI greatly exceeds in number all the others put together, ISTR at the height of the operation (1972?) something like 20 000+ troops were deployed in Province.
Any of the above are worth more than a commemorative medal ....