Image courtesy of Jack Harper Slide Collection
Line image courtesy of the Jack Harper Slide Collection
Image courtesy of the Jack Harper Slide Collection
Image courtesy of the Jack Harper Slide Collection
Image courtesy of the Jack Harper Slide Collection
Image courtesy of Matthew Naedel.
Image courtesy of Matthew Naedel.
Image courtesy of Matthew Naedel.
Underground bulb. Image courtesy of Matthew Naedel.
Underground bulb. Image courtesy of Matthew Naedel.