Industry & Technology -line art (v4) Civil Engineering Illustration A 19th century engraving of a dam and water reservoir.

Industry & Technology -line art (i4) Civil Engineering Bridge

Industry & Technology -line art (v4) Civil Engineering A 19th century German engraving of a water reservoir retaining wall.

Industry & Technology -line art (v4) Civil Engineering A 19th century German engraving of a sluice-gate system for a dam.

Industry & Technology -line art (b4) Civil Engineering Excavating machinery A steel engraving from a series of early Victorian concept drawings of a tunnel beneath the River Thames in London, England.

Industry & Technology -line art Civil Engineering Bridge over a railway line Elevation

Industry & Technology -line art (v4) Civil Engineering A 19th century German engraving of a water reservoir showing the intake pipe and pump house.

Industry & Technology-line art (b4) Civil Engineering Excavating machinery A steel engraving from a series of early Victorian concept drawings of a tunnel beneath the River Thames in London, England.

Industry & Technology -line art (x4) Civil Engineering Section of canal construction. Lock systems are a means of connecting waterways at different elevations by canals. The technology to move these massive amounts of water was complex and required inge

Industry & Technology -line art (b4) Civil Engineering A steel engraving from a series of early Victorian concept drawings of a tunnel beneath the River Thames in London, England - men digging the tunnel.

Industry & Technology -line art (v4) Civil Engineering A 19th century German engraving (cross-section) of a sluice-gate system for a dam showing the mechanism to raise and lower the gate.

Industry & Technology -line art (b4) Civil Engineering A steel engraving from a series of early Victorian concept drawings of a tunnel beneath the River Thames in London, England. subterranean cavern, entrance, stairs, high, deep, tunnel, underground, Vi

Industry & Technology -line art (d4) Civil Engineering construction