Keywords: BeerAndMadler Quad IV.jpg Johann Heinrich von Mädler and Wilhelm Beer quadrant 4 1834 1836 http //the-moon wikispaces com/Beer+and+M C3 A4dler http //the-moon wikispaces com/Beer+and+M C3 A4dler Johann Heinrich von Mädler and Wilhelm Beer Custom license marker 2012 12 15 PD-old-100 Beer and Mädler 1834-1836 quadrants Uploaded with UploadWizard |