B36, MARCONI, 12SN7GT, CLEAR GLASS, FAT BROWN MICANOL BASE, LARGE DECAL, OCTOBER 1955 MANUFACTURE, 12SN7
B36, MARCONI, 12SN7GT, CLEAR GLASS, FAT BROWN MICANOL BASE, LARGE DECAL, OCTOBER 1955 MANUFACTURE
B36, MARCONI, 12SN7GT, CLEAR GLASS, FAT BROWN MICANOL BASE, LARGE DECAL, OCTOBER 1955 MANUFACTURE