Genuine Gretsch Bigsby B6G (Kiku 6) This is a Bigsby with the Gretsch logo. It's the type used on 6120 models. Especially the gold ones are hard to find individually. This is a genuine part taken from a Gretsch guitar. Condition-wise, there is some plating lift and clouding, but it still looks good overall. The spring is included. Instant purchase is OK.