[Optical views. Vienna] Three optical views: (1) Vue de la Poste imperiale à Vienne

Contemp. handcol. engr. optical view, 32 x 37.5 cm, by Sichnit, w. caption in reverse in French and "Collection des Prospects" above the image, and captions in German and French below the image. Augsburg, "au Negoce commun de l'Academie Imperiale d'Empore des Arts Liberaux", ca. 1770. Sl. fold., lower margin strengthened w. thin paper tape verso. Attractive view. (2) Prospect von Wien. Contemp. handcol. engr. optical view, 30 x 39.5 cm, by Sichnit, w. caption in reverse in French and no. 3 above the image, and captions in Italian, German and French below the image. Ibid., I. Carmine, ca. 1770. Some horizontal folds in lower blank margin, minor other imperfections. Fine leaf w. wide blank margins. -and 1 other optical view of Vienna publ. by Carmine.

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