1897-12-18: Part 3 - THE MANUFACTURE OF STEEL TUBING- PIPE MILLS AT THE NATIONAL TUBE WORKS, McKEESPORT, PA.<br><br>SEE cover page 10/23/1897 to buy entire artcile.
1897-12-18: Part 3 - THE MANUFACTURE OF STEEL TUBING- PIPE MILLS AT THE NATIONAL TUBE WORKS, McKEESPORT, PA.<br><br>SEE cover page 10/23/1897 to buy entire artcile.
