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 off-white and with black text. The text on the box reads:"ONE ELECTRON TUBE JAN-CHS-12AU7 S.C. ORDER NO. 24593-PHILA-51-13A SYLVANIA ELECTRIC PRODUCTS INC. ACCEPTANCE DATE 11-51".