Nuremberg - Powder mill explosion - 2 pcs, histor. Views of the destroyed Wöhrder Pulvermühle, copper engraving / etching by Adam Wolfgang Winterschmidt, simultaneous depiction (showing both the explosion and the ruins lying in ruins), Nuremberg 1766, below: 1x "Abrisz von der, den 22ten May 1764 Nachmittags um halb 4 Uhr, in die Luft gespraengten nürnbergischen Pulvermühle", after Johann Nepomuk Maag, below the depiction legend A-P including the description of the killed workers (Pulvermeister Michael Paul Drechsler / Georg Hauerstein / Johann Goll), ca. 17 x 22cm, browned / stained / creased, sheet corners damaged, upper right tear (remain. 1x "Abbildung der Nürnbergischen Pulver-Mühl, welche 1766 den 12 Sept. vormittags um 11 Uhr abermals in die Luft gesprengt ist", below the depiction description of the killed workers (Pulvermeister Johann Leonhard Neuhäufer / Augustin Mader), ca. 14 x 19,5cm, browned / stained / waterstained, sheet margins min. creased, each: verso collector's stamp "WZ Nbg." (probably Wilhelm Zeitler), inscribed by another hand in pencil, mounted on passep. (ca. 46,5 x 31,5cm), unframed