Germany. (British Army Post office). 1921. Registered envelope addressed to London bearing Great Britain SG 360, 1d carmine (2) and SG 362, 1 1/2d brown (2) tied by Army Post Office G.R. double ring '19th Ju 1921' with 'A.P.O. G.R.' registration label and oval 'Armamments Sub-Commission/ Military Inter-allied Com of Control/ Cologne/ 18th June 1921' on face in violet with hooded London reg receiver on reverse. Very attractive and scarce item of registered mail.