This well produced vintage cigarette card features preparatory work being undertaken on the "Kelvite" Compasses used on the Cunard White Star liner "RMS QUEEN MARY" .

The reverse side provides further technical information about the scene depicted.

Issued in 1936 by W.A. & A.C. Churchman, this original card measures 68 x 36 mm.

In very good condition.

Will be supplied in protective plastic display sleeve and securely despatched.