| James Dunlop The Upper Barracca, St.Barbara's Bastion and Barriera Wharf as seen from the Lower Barracca Gardens, Valletta, Malta [Album of the Edinburgh Calotype Club, vol. 1] n.d. Calotype 20 x 14.6 cm National Library of Scotland Shelfmark: Phot.med.33 LL/49523
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