TOMBO BAND #1521

Does anyone know how much the tombo band #1521 is worth today thinking about buying on. Went to thrift shop and seen one for 20 bucks should i buy it?

I don’t know about the tombo band but I just got a lee Oskar/tombo 1910-C harmonica and I love it. Jp’s website (harmonica.com) has the best deals on all the harps I’ve looked at.