NUMBER@1 , Issue NUMBER@2 -LRB- NUMBER@3 -RRB- , pp.1-30 -LRB- NUMBER@4 -RRB- Made of six to twelve sails covered in reed matting or cloth material , these windmills were used to grind corn or draw up water , and were quite different from the later MISC@1 horizontal-axis versions .

NUMBER@1 , Issue NUMBER@2 -LRB- NUMBER@3 -RRB- , pp.1-30 -LRB- NUMBER@4 -RRB- Made of six to twelve sails covered in reed matting or cloth , these windmills were used to grind corn or draw up water , they were quite different from the MISC@1 versions .
