Printed in grey near top of tube and in black on the box
box: 3 in x 1 in x 1 in; tube: 2 1/8 in x 13/16 in x 13/16 in
This tube has 9 connector pins. "SYLVANIA" and "MADE IN U.S.A." are printed in white on the side of the tube. The box is white and with black text. The text on the box reads: "Stock No. 2J12AT7 / FIIN No. 166-7662 / ONE ELECTRON TUBE / JHS 12AT7 / S.C. Order No. 11357-PH-54-59 (31) / MF'D BY SYLVANIA ELECTRIC / Date Packed 9-54" and "THIS ELECTRON TUBE IS PHYSICALLY SIMILAR TO THE CV-455 VALVE AND IN MOST APPLICATIONS SHOULD OPERATE SATISFACTORILY".