Electric guitar · solidbody
| Body Style | solidbody |
| Body | Mahogany |
| Neck | Mahogany |
| Neck Pickup | John Birch Biflux (1970s, historical spec) |
| Bridge Pickup | JayDee Old Boy humbucker (wound to Iommi's original specs) |
| Bridge | Schaller 456 with fine tuners |
| Made In | United Kingdom |
Artists documented playing the Jaydee Custom Guitars Old Boy Relic: Tony Iommi.