CV1988, GEC, HAMMERSMITH, MIL SPEC 6SN7GT, BROWN MICANOL BASE, WHITE CARTOUCHE, JULY 1956 HAMMERSMITH MANUFACTURE, ECC32, 6SN7

CV1988, GEC, HAMMERSMITH, MIL SPEC 6SN7GT, BROWN MICANOL BASE, WHITE CARTOUCHE, JULY 1956 HAMMERSMITH MANUFACTURE, ECC32,  6SN7

A beautiful and very scarce variant showing perfect white print and the elliptical duo tone blue and white decal on the obverse side of the envelope.