This is an original 1874 halftone print of an overhead traveling cranes in operation along the docks of Middlesbrough, England. The traveling staging or gantry of each crane has a span of 23 feet center to center of rails, one of the later being laid close to the edge of the quay, and the other in the 6 feet between rails. The clear height is 17 feet 6 inches, which allows the uninterrupted circulation of locomotives, and all kinds of rolling stock on each of the two lines of rails which are spanned by the gantry. The traveling wheels are 12 feet center to center. The framing is composed of a pair of timber uprights, braced and strengthened by cast-iron brackets, and two wrought-iron plate girders, which are connected to the timber uprights by four wrought-iron plate brackets, strengthened with angle irons.
This 137+ year old Item is rated Very Fine +++. Light aging throughout. No creases. No natural defects. No tears. No water damage. Please note there is print on the reverse, and some bleed through visible on this print.
Product Type: Original Halftone Print; Black / White
Grade: Very Fine +++
Dimensions: Approximately 7.5 x 9 inches; 19 x 23 cm
Authentication: Serial-Numbered Certificate of Authenticity w/ Full Provenance
Protection: Packaged in a custom archival sleeve with an acid-free black board (great for display, gift-giving, and preservation)
Keywords specific to this image: industrial work, trucks