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Winter view of Lock No. 1 and Dam No. 1 in Mauch Chunk.The Lehigh Valley Depot can be seen on the right as well as the passenger station of the Central Railroad of New Jersey . Part of publication: Delaware and Lehigh Canals : a pictorial history of the Delaware and Lehigh Canals, National Heritage Corridor in Pennsylvania

F.S. Cylinder for 8000-ton forging press made for United Engineering & Foundry Co. Shipped from No. 8 Machine Shop [Bethlehem Steel] to Aluminum Co. of America Cleveland, Ohio March 16, 1954. FA-2879. Weight 116,330#

F.S. Cylinder for 8000-ton forging press made for United Engineering & Foundry Co. Shipped from No. 8 Machine Shop [Bethlehem Steel] to Aluminum Co. of America Cleveland, Ohio March 16, 1954. FA-2879. Weight 116,330#

Boatman, along with his family, aboard a boat entering Lock 9 . Part of publication: Delaware and Lehigh Canals : a pictorial history of the Delaware and Lehigh Canals, National Heritage Corridor in Pennsylvania

Image at the tide lock in Bristol, Pa. showing the toll house and toll collector. Tolls were collected in Bristol, New Hope, and Mauch Chunk. Industrial buildings can be seen in the background . Part of publication: Delaware and Lehigh Canals : a pictorial history of the Delaware and Lehigh Canals, National Heritage Corridor in Pennsylvania

The Molly-Polly-Chunker. The boat is named after two mules, Molly and Polly, along with the term used in Mauch Chunk for "boat." Used for pleasure boating as commercial traffic declined on the Delaware Canal, boating parties would travel down the Canal, starting from Bristol to Mauch Chunk and back. This picture illustrates one such party . Part of publication: Delaware and Lehigh Canals : a pictorial history of the Delaware and Lehigh Canals, National Heritage Corridor in Pennsylvania

"Bethlehem Steel Company twelve inch gun for United States Army. The block is opened by the continuous revolution of the crank. The horizontal wheel which moves the block has both worm and spur faced teeth - the former to rotate and the latter to pull and push the block. Gun complete." --Caption. This image can be found in the booklet titled Bethlehem Steel Company: Guns and Armor Plate, 1904.

Bethlehem Steel Company twelve inch gun for United States Army

The "Switchback Railroad." Tourist car waiting at the foot of the Mount Pisgah plane waiting to be switched to another track. Part of publication: Delaware and Lehigh Canals : a pictorial history of the Delaware and Lehigh Canals, National Heritage Corridor in Pennsylvania

Image of six, three and one-pounder guns in shop at the Bethlehem Steel Company. This image can be found in the booklet titled Bethlehem Steel Company: Guns and Armor Plate, 1904.

Six, three and one-pounder guns in shop at the Bethlehem Steel Company

"Bethlehem Steel Company nine 10-inch and seven 8-inch guns for United States Army, loaded for shipment at outbreak of Spanish War." --Caption. This image can be found in the booklet titled Bethlehem Steel Company: Guns and Armor Plate, 1904.

Bethlehem Steel Company nine 10-inch and seven 8-inch guns for United States Army, loaded for shipment at outbreak of Spanish War

100-ton moulding press for Bureau of Supply & Accounts, Navy Dept. Shipped from No. 2 Machine Shop [Bethlehem Steel] to Naval Air Station, Norfolk, VA May 3, 1949. M.O. 11140-41-44 Weight: 11,065#

100-ton moulding press for Bureau of Supply & Accounts, Navy Dept. Shipped from No. 2 Machine Shop [Bethlehem Steel] to Naval Air Station, Norfolk, VA May 3, 1949. M.O. 11140-41-44 Weight: 11,065#

Two Lehigh Coal and Navigation Company light boats, 278 and 150, in Lock 11, heading North in 1931. Part of publication: Delaware and Lehigh Canals : a pictorial history of the Delaware and Lehigh Canals, National Heritage Corridor in Pennsylvania

Assembly for forward extrusion operations (4000 ton hydraulic press) for A.C.F. Industries, Inc., Milton, PA. Shipped from No. 2 Machine Shop [Bethlehem Steel], March 16, 1955 M.O. 35505 Weight: 19,265#

Assembly for forward extrusion operations (4000 ton hydraulic press) for A.C.F. Industries, Inc., Milton, PA. Shipped from No. 2 Machine Shop [Bethlehem Steel], March 16, 1955 M.O. 35505 Weight: 19,265#

View of Saeger's Mill taken from the guard lock. South Mountain can be seen in the background and tracks of the Central Railroad of New Jersey can be seen along the left . Part of publication: Delaware and Lehigh Canals : a pictorial history of the Delaware and Lehigh Canals, National Heritage Corridor in Pennsylvania

Bed, crown & draw slide for 8000-ton triple action press for Birdsboro Steel Foundry & Machine Co., shipped from No. 8 Machine Shop [Bethlehem Steel] May 31, 1951. Weight 1,029,620

Bed, crown & draw slide for 8000-ton triple action press for Birdsboro Steel Foundry & Machine Co., shipped from No. 8 Machine Shop [Bethlehem Steel] May 31, 1951. Weight 1,029,620

This is a photograph (ambrotype process) of Ellen Maxwell Fritz and Gertrude Fritz, the wife and daughter of John Fritz.

Ellen Maxwell Fritz and Gertrude Fritz

Column (from 108” Ingot 550,000#) 3D177A1. Order: FA-2682 Loewy Construction Co. Size: 98” 44” 98” wide 16” thick 109’ 6” O.A. length. Operation: Second slabbing heat. Date forged: January 19, 1953 [Bethlehem Steel]

Column (from 108” Ingot 550,000#) 3D177A1. Order: FA-2682 Loewy Construction Co. Size: 98” 44” 98” wide 16” thick 109’ 6” O.A. length. Operation: Second slabbing heat. Date forged: January 19, 1953 [Bethlehem Steel]

The lockkeeper's (Lock 4) wife and children (six of the eight children are in this photo). The mother is seen doing wash, which she would do for travelers who would pick it up o their return trip . Part of publication: Delaware and Lehigh Canals : a pictorial history of the Delaware and Lehigh Canals, National Heritage Corridor in Pennsylvania

The Gahuwa Club, later known as the Northampton Country Club, was one of the clubs that was formed along the canals. It was located in the Hopesville area. In this image are boys standing near the clubhouse of the Gahuwa Club in 1911. They are, from left to right, an unidentified boy, Arch Johnston Jr. (Archibald Johnston, Sr., was vice president of Bethlehem Steel and first mayor of Bethlehem), Bob Stout, Tom Loeser, and John Loeser . Part of publication: Delaware and Lehigh Canals : a pictorial history of the Delaware and Lehigh Canals, National Heritage Corridor in Pennsylvania

Men repairing a break in the towpath at Lumberville in August 1912 . Part of publication: Delaware and Lehigh Canals : a pictorial history of the Delaware and Lehigh Canals, National Heritage Corridor in Pennsylvania

Mill 11” radius on both ends of three piece laminated column (39” x 39” x 101’5”) at the same time, using the Ingersoll Milling Machine and Giddings & Lewis Hor. Bor. Mill for 35,000 ton Forging Press. Loewy Construction Co., New York City. No. 8 Machine Shop [Bethlehem Steel] April 9, 1954. FA-4115, Est. Weight: 572,400#

Mill 11” radius on both ends of three piece laminated column (39” x 39” x 101’5”) at the same time, using the Ingersoll Milling Machine and Giddings & Lewis Hor. Bor. Mill for 35,000 ton Forging Press. Loewy Construction Co., New York City. No. 8 Machine Shop [Bethlehem Steel] April 9, 1954. FA-4115, Est. Weight: 572,400#

This is an image of a Bethlehem Steel Company 12" gun on disappearing carriage in the loading position. The weight and velocity for the gun are provided, along with information about its shooting capabilities. This image can be found in the booklet titled Bethlehem Steel Company: Guns and Armor Plate, 1904.

Bethlehem Steel Company 12" [inch] gun on disappearing carriage, loading position

Lehigh Coal and Navigation Company boats passing in the basin between locks 9 and 10 at the same time . Part of publication: Delaware and Lehigh Canals : a pictorial history of the Delaware and Lehigh Canals, National Heritage Corridor in Pennsylvania

Forged steel tie road (69’ 11 ½” long) (25,000 ton press) for E.W. Bliss Co., Canton, Ohio. Shipped from No. 8 Machine Shop [Bethlehem Steel] December 26, 1952. FA 2713 Weight: Green-470,000#, Finished-309,880#

Forged steel tie road (69’ 11 ½” long) (25,000 ton press) for E.W. Bliss Co., Canton, Ohio. Shipped from No. 8 Machine Shop [Bethlehem Steel] December 26, 1952. FA 2713 Weight: Green-470,000#, Finished-309,880#

The Hamilton Street Bridge [Allentown] and dam. The guard lock can be seen in the foreground . Part of publication: Delaware and Lehigh Canals : a pictorial history of the Delaware and Lehigh Canals, National Heritage Corridor in Pennsylvania