Help identifying King trombone

[boneberg]

Trying to identify this King trombone. There is no model name or number, only "King" on the bell section. According to the serial number (all I have) it is from 1981-82. I would be most interested in finding out the bore size.

Thanks for any help or leads!

King Posaune1 ca. 1981-82.jpg

King Posaune2 ca. 1981-82.jpg

[Kingfan]

Looks like a 607, a .525 bore intermediate horn. https://www.conn-selmer.com/en-us/instr ... bones/607f. https://reverb.com/p/king-607f-legend-s ... sh-f-rotor

[boneberg]

But has the 607F been around since the 1980's? Could this possibly be a 605F Cleveland (.500 bore)?

[BGuttman]

Yes, the 607 has been around since the1980s. If it had a curved bell brace it would be the 2125 (3B Plus / F).

[boneberg]

Thanks for your help!