1920 printed registered envelope addressed to Stockholm. Franked Great Britain single 1/- and 1d together with two x 1/2d and four 2 1/2d adhesives tied 'A.P.O. CONSTANTINOPLE' c.d.s. '15 JY 20' Postage was 2 1/2d first oz then 1 1/2d each subsequent oz. Total paid 1/10d for a letter weighing 140z plus Registration Fee 2d