It’s quite a rarity to see an all original Gibson RB-4 on the market that but here we go… This one dates to 1993 with serial number 4-9307-29. At some point, Greg Rich signed the inside of the resonator with a bit of artwork. Very mild patina is present with this banjo especially for being around for over three decades. This RB-4 banjo has the factory Kulesh tone ring and sounds just like it should with Keith d-tuners added. If you have any questions or desire additional pictures, don’t hesitate to ask. Thanks for looking. Here's Video: youtube.com/watch?v=m5EOGu0xpas