Hi this instrument is in perfect working order. They were taken out of a 2004 Windy Bora but I think are common to many boats in the early 2000s there is some slight yellowing on the instrument covers. I removed one and did do some minor damage to the plastic but it locks down and seals perfectly and I did establish that the dials themselves are brilliant white so it’s only the covers that have got some discolouration Which would need polishing probably with headlight restorer or use hydrogen peroxide and a uv light to remove discolouration. The other one has sold International buyers pay £17 for postage happy bidding
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