Drawing of workers on a railroad flatcar, pencil on wove paper, signed bottom center Paulus Roetter and dated lower right 1853, 2 3/16 inches by 5 1/8 inches
Drawing of men striking rocks with picks below a cliff with a jagged tree trunk; two men stand on the cliff. Pencil on wove paper, signed lower right Paulus Roetter, no date, 4 inches by 3 1/4 inches