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Page 5 · column 5 of 9 · from the scan, no model involved
Egyptians Had Them
Leeks probably were in use earlier than the one drawn on a 4,000-year-old Egyptian wall. Big and cumberson, it required a key looking something like a giant’s toothbrush, made of wood. Inserted in a slit in the lock, the key’s vertical pegteeth lifted pins out of the way so a door bar could be withdrawn.
The Greeks invented locks that could be opened from the other side of doors through the world’s first keyholes. There was one major disadvantage: the keys resembled grain harvesters’ sickles, not only in shape but in size.
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