This is a rare pen made in the 1980’s-early 1990s.
The Platinum 3776 Cha Ring model has gold trim and is made of, possibly a celluloid, material that is brown and golden rings - the closest comparison I can think of is a vintage Parker Vacumatic in gold brown. I have read online it is called the “pine needles” pattern.
The pen has an 18k gold nib, and is fitted with a converter for use with bottled ink. The barrel is quite a tight fit to the threads of the section. Generally the pen is in excellent condition.
The pen is presented in a Platinum box, with platinum outer box.
This is a pen any collector will want to add to their collection. I am only selling this one because I have another!
misc 300