I wanna pair!! My 25 year gift was a pair of lead glass/silver vases with an insurance value of about £800; I never knew cufflinks were available and even now I'm only a FISO (after 34 years as an ATCO with NATS) I still wear 'proper' shirts and ties to work.
When I was still at LATCC before my cadet course, Pete Wyre, then a crew chief, told me (with a smirk on his face) he'd just been 'pulled' by the Watch Manager not only for taking his jacket off, but horror of horrors, he was wearing a SHORT SLEEVED shirt!
Pete later became SATCO Boscombe Down, until he had the audacity to do an MOD(PE) Air Observers course which involved parachuting out of an Andover off Portland. He was quickly posted out.