Just for the record, 87 is a UTA coach, built in 1951, several years after the NCC ceased to exist. The RPSI has tended to paint it in NCC livery to match the others, but it would never have worn maroon paint in traffic. Green until nir days, then maroon and grey for the last few years of its life.
While a UTA vehicle, it's design owed much to NCC styling, as this is what York Road's drawing boards would have been used to.