Andy: If it has the removable dual-neck feature and a solid-silver body, it most likely is one of the S-9930 (or whatever) models, similar to an S991.
As I understand it, the differences among the dual-neck models are only in the presence or absence of hi-G keying (S-981 vs. 991), and body materials (S991=lacquered brass; S992=bronze, etc.). DAVE
As I understand it, the differences among the dual-neck models are only in the presence or absence of hi-G keying (S-981 vs. 991), and body materials (S991=lacquered brass; S992=bronze, etc.). DAVE