Fig. 187. Roman Padlock, with Key rusted in it (No. 445). Ca. 1:3.
The modern type of lock, in which the key works on a pivot and moves the bolt backwards and forwards by a rotatory movement, after passing through a series of wards, was also known to the Romans. This is proved by the existence of several Roman keys solely adapted to a lock of this character (e.g., No. 444; fig. 186d). Such keys are frequently found combined with finger-rings, a convenient method of lessening the danger of loss. We may conclude that this type of key was a favourite one for use with small padlocks.
Padlocks of Roman date are common. In this Case three of a barrel form are shown. One (No. 445; fig. 187) has the key still rusted in it. The padlock has traces of a chain attachment at one end, and was probably kept hanging to a doorpost, while the bolt was shot into the end link of a chain attached to the door. Two other Roman padlocks illustrated (fig. 188) are more ornamental in character. One (No. 446) is in the form of a circular box with hinged handle, the free end of which was fastened by pin-bolts within the box. There is also a secret catch underneath. The other padlock (No. 447) is furnished with a chain attached to one side of it. The last link of the free end was fastened inside the box, the lid of which was closed with a secret catch. The head on the cover is that of a Sphinx, a hint that the riddle of opening was not easy to solve. A hole in the floor of the box makes it probable that it was fastened to the object to be secured.
Fig. 188.—Roman Padlocks (Nos. 446, 447). 1:1.
Fig. 189.—Bronze Strong-Box, with Cover seen on Inner Side. c and d explain the working of the Bolt (No. 450). 1:2.
Fig. 190.—Cover of above Strong-Box (Outer Side). 1:2.