Information:
No pictures nor footage of Elvis wearing this suit has surfaced. It has been on display at Graceland for a long time.
Elvis possibly wore this suit during his 1973 January/February engagement, but the suit was never worn on tour.
Judging by it's design, it could be considered as an "upgraded" version on the 1971 "Pinwheel's". The belt also has a slight resemblance to the belt Elvis wore with the "Thunderbird" in 1972. It was a gift from the actor Jack Lord.