Printed blue on grey airletter with 'Waterfall' view on reverse, the same as the QE2 postal stationery version (H&G FG11) used with 1954 6c yellow green and 12c black & reddish brown QE2 issue (SG 336 & 338) tied by oval REGISTERED N.A.BRITISH GUIANA cancels dated 18JY 1955 with printed black & white registration label alongside with 'NA' added in blue manuscript. Addressed to GERMANY with arrival cds on reverse.