No. 3. When Mr. Eben Symonds bought his home on Lynde Street, he found upon the door an old knocker of most unusual design. Of the ‘hammer’ type, it showed a rectangular outline with a ‘striker’ in the form of a fluted shell, grasped at the upper end by a clenched fist. Knocker and door alike had been painted, but the former when cleaned was discovered to be of brass--an especially beautiful specimen. No. 4. Another example of the ‘hammer’ type is at the residence of Mr. Charles P. Waters on Washington Square. The design is quite unusual, as both upper and lower plates are ornamented about their circumference with points somewhat suggestive of a star pattern. No. 5. A not uncommon style of knocker had a blank space for the name of the house-owner. The one shown here possesses this feature, with a smaller space on the striker where the number of the house might be engraved. The pattern is the familiar urn, so often present in Colonial design. No. 6. This is a very unusual pattern, with a large smooth oval above and a small diamond-shaped space upon the striker, perhaps for name and number, as in the example just preceding. No. 7. A plain oval surmounted by a ring following its outline, with a simple ornament at top and bottom suggesting a shell, is the design of the knocker on the door of the Parker residence at 8 Chestnut Street. Here use has been made of the blank surface for the engraving of the owner’s name. This is another variety of the hammer type. A favorite pattern in English knockers, commonly used in this country prior to the Revolution, was that of a lion, in whose jaws was grasped the ring which formed the striker. But with the revolt against royal tyranny, the lion was soon retired from his conspicuous position, and his place taken by the more acceptable form of the eagle, treated with greater or less conventionality. No. 8. On the door of Mrs. George Wheatland at 274 Essex Street is found one of these eagle knockers. The lower part of the bird, below the blank plate for owner’s name, has little suggestion of ornithology, in strong contrast with the upper half, where the plumage is strongly and effectively modeled. The striker itself carries a possible suggestion of the dolphin. No. 9. Another eagle knocker, much less pleasing in treatment, and bringing to mind the figures of the national emblem found upon American coins, embellishes the entrance of ‘Oak Knoll,’ Peabody, once a part of the old town of Danvers, as Danvers in its turn was once a part of Old Salem. The shield upon the eagle’s breast is left blank for use as a nameplate. [Illustration: OLD SALEM KNOCKERS (See pages 93-96)] No. 10. The use of classic heads drawn from Greek and Roman mythology was very common in the Italian knockers of the Renaissance period, and these were frequently imitated by the Colonial craftsmen in New England.