box: 1 in x 1 in x 3 in; tube: 1 3/4 in x 3/4 in x 3/4 in
Both tubes have 7 connector pins. The RCA logo and "MADE IN USA" are printed in white on the side of the tube. The tube is enveloped in a card stock insert, which slips into a square card stock sleeve with black text. The text reads "U S NAVY Mfg by RCA Acpt (July) April 1944" and "US ARMY JRC 9001 Cont NXSA 21693 For Zenith Radio Corp".