Vintage Rudy Muck Citation trombone

Description

This is a Vintage trombone found at an estate sale.  There is a serial? number 163898 on one section which may help to date the instrument. The case seems of the 1930's vintage .  The instrument itself is in overall good condition with a fea minor ding which I tried to photograph but they don't show well .  In the pic of the inside of the bell there is a light spot which is actually a pin hole from a ding.  The slide works easily and has no bends or kinks. It come with a Frank Holton mouthpiece.
The case is blown out in one corner but still latches and protects the instrument
I'll try to answer any questions but I'm not a trombone expert