Not a Guild, or even a bass...but it's black and old (1957, best as I can determine):
BTW: it's a Silvertone 1427-L, the cousin of the fancier Harmony H62:
Also related is the H63 "Espanada" with quirky, fluted "Harmometal" body binding that calls to mind the edge of a 1950s, Formica-topped dinette table. All these guitars are jump blues monsters.
The pickups are P-13s, junkyard dog ancestor of the P-90.