Royal Navy Long Service Full Size Medal EIIR Service_Military A piece of ribbon is

A piece of ribbon is sewn on to a pin-on brooch or piece of buckram to be worn in place of your medals when medals are not required or not appropriate

This was replaced by the AFC in 1993

The GSM SE Asia was issued for one days service in the following areas:-

Instituted in 1940 for rewarding acts of outstanding gallantry deemed not suitable for the award of the George Cross

but the four reverses indicate for which service the medal was issued

Royal Navy Long Service Full Size Medal EIIR Service_Military A piece of ribbon isAwarded for 15 years exemplary conduct, with second award bars for each further 15 years service.