Otari MX5050 metal roller cover

This is an extremely rare cover , I am not an Otari guy as they never had the sexy colours going on that Tascam had but sometimes odd bits arrive

This is from an MX5050 and maybe others  which I bought so I could measure the rubber tyres with a view of doing those later.

Its held on by a simple metric bolt that I did not get but its not hard one to find