File:Coal supply in the German Empire Scale.jpg: Revision history

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19 October 2018

  • curprev 07:1507:15, 19 October 2018RPetitpierre talk contribs 233 bytes +233 Karte über die Production, Consumtion und Circulation der mineralischen Brenstoffe in Preussen während des Jahres 1881, Schropp (Berlin), 1881. Zoom on Scale. [https://gallica.bnf.fr/ark:/12148/btv1b53021137x.r=charbon?rk=278971;2]