Industry & Technology -line art Iron and steel making Puddling furnace. A predecessor to the blast furnace., forge, hot, heat, melt, metal, ore

Industry & Technology -line art (w4) Iron and steel making A late 18th century forge Illustration

Industry & Technology -line art (w4) Iron and steel making A furnace for smelting iron ore.

An illustration of skilled workers

Industry & Technology -line art Glass manufacture, 18th century Illustration The fall of Constantinople in 1254 to the Crusaders and in 1453 to the Ottoman Turks drove many Byzantine glassworkers to Venice. The Venetians closely guarded their techniques

Industry & Technology -line art (w4) Iron and steel making An early 19th century blast furnace - a furnace used to smelt iron ore in very high temperatures by using very hot compressed air.

Industry & Technology -line art Glass manufacture, 18th century Blowing the glass Illustration The fall of Constantinople in 1254 to the Crusaders and in 1453 to the Ottoman Turks drove many Byzantine glassworkers to Venice. The Venetians closely guarde

Industry & Technology -line art (cc4) Foundry Iron making The wall of an early 19th century blast furnace - a furnace used to smelt iron ore in very high temperatures by using very hot compressed air.

Industry & Technology -line art (w4) Iron and steel making Illustration An early 19th century blast furnace - a furnace used to smelt iron ore in very high temperatures by using very hot compressed air.

Industry & Technology -line art (cc4) Iron and steel making An early 19th century blast furnace - a furnace used to smelt iron ore in very high temperatures by using very hot compressed air.

Industry & Technology -line art Glass manufacture, 18th century The fall of Constantinople in 1254 to the Crusaders and in 1453 to the Ottoman Turks drove many Byzantine glassworkers to Venice. The Venetians closely guarded their techniques and a defect

Industry & Technology -line art Glass manufacture A furnace for artificial gems. The fall of Constantinople in 1254 to the Crusaders and in 1453 to the Ottoman Turks drove many Byzantine glassworkers to Venice. The Venetians closely guarded their techn

manufacturing industries, industry, industry, melting furnace, refining, tempering