Physical description
copy of black and white photo: Hercules and Energetic Mine - showing poppet head, chimney and shed in foregound. On back mng 32/Hercules & Energetic' handwritten . RHSV stamp.
copy of black and white photo: Hercules and Energetic Mine - showing poppet head, chimney and shed in foregound. On back mng 32/Hercules & Energetic' handwritten . RHSV stamp.