| Venezia. Il Palazzo Ducale [Plan of the Doges Palace, Venice] 1927 Folding map 12.5 x 19.5cm (5 x 7.5 in.) Ebay LL/123639 Source: "The Blue Guides Italian Touring club Northern Italy from the Alps to Rome, by L.V. Bertarelli", edited by Findlay Muirhead; Published by Macmillan and Co., Ltd, London. & Librairie Hachette, Paris [Blue Guide - Northern Italy]
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