THE HIGHEST QUALITY B329 = ECC82 / 12AU7 TUBE OUT THERE. DOUBLE BAR SQUARE GETTER. THE GETTER FLASHING AND GLASS IS FANTASTIC. GENUINE BRITISH MADE TUBE HAS C3 CODE 1953 C= MARCH 3 = 1953. THIS TUBE IS ABSOLUTLY BEAUTIFUL AND IT WAS MADE 1953 IN GREAT BRITIAN.