I inherited this very used Vega VIP banjo. I don't have an age on it, and because it was "built" by combining pieces from a few different banjos it lacks a serial number. It plays well enough although it has a good share of scratches and nicks. (It was a travel instrument for a professional musician from the 1950's through the 90's).
Whenever I play a chord on the fifth fret, it buzzes. I hear the lowest-sounding string buzzing the most, and it's somewhat lessened if I bend the string towards the next string. I've attached pictures of the fret itself and the places where the bottom string terminates.
Because it's a family instrument with a great deal of sentimental value I'd rather not trust it to just "any" shop to repair without having some idea what I'd be asking them to do.
I marked the fret in question in the picture. It's the lowest string, far left in all pictures.
Any guesses about what to check first?