**HISTORIC PRE-MARSHALL 2X12 PA CABINETS – JIM MARSHALL & SON EARLY 1960S “CUSTOM LINE RANGE” PROTOTYPES** I’ve been holding onto these for some time, waiting for the right time to release them into the market! A truly historic pair of Jim Marshall & Son “Custom Line Range” PA 2x12 cabinets, discovered in a Birmingham house clearance. These are rare pre-production examples from the earliest 1960s (c.1960–1962), predating the iconic 4x12 cabinet. Likely hand-built in Jim’s Hanwell drum shop or ho