The King Saxello is a B-Flat Soprano Saxophone. It was the first to have a slightly curved neck and the curved bell. It is a great soprano saxophone ad have a very good sound.
The only disadvantage to the Saxello was when they curved to bell section, they had to make the Low B & B-Flat keys and tone holes smaller to fit, so that made the lower notes not as good as the same vintage straight soprano.
This Saxello has a Silver-plated, sand blasted finish on the main body and Gold-plated keys.
Rahsaan Roland Kirk was likely the most famoust player to use the Saxello!
https://www.youtube.com/watch?v=Mk0mSclnUQQ “WE Free Kings”
It is part of the Rheuben Allen Woodwind Collection.