1939 KGV 41/2d size H2 registration envelope bearing 1934-36 9d and 1/-, sent from London to New York endorsed "Given Insured for £400" and bearing a red Insured label. The three stamps and reverse with three strikes of violet boxed "RETURN TO SENDER / Postage is being refunded by / Divisional Controller, L.P.R., E.C / Fresh postage necessary / if reposted", the reverse also handstamped by violet "IRREGULAR ACCEPTANCE OF INSURED / LETTER/BOX., INSURED LETTER/BOX / SERVICE NOT IN OPERATION TO (USA)". Very unusual. Photo on Page 28. (Image1)