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Action by Andreas and Nanette (Stein), Streicher Viennese escapement (1794)

Action by Andreas and Nanette (Stein), Streicher Viennese escapement (1794).png The Erard grand action modified by HerzThumbnailsEnglish direct lever grand action, developed by Broadwood from Backers (1884)The Erard grand action modified by HerzThumbnailsEnglish direct lever grand action, developed by Broadwood from Backers (1884)The Erard grand action modified by HerzThumbnailsEnglish direct lever grand action, developed by Broadwood from Backers (1884)The Erard grand action modified by HerzThumbnailsEnglish direct lever grand action, developed by Broadwood from Backers (1884)The Erard grand action modified by HerzThumbnailsEnglish direct lever grand action, developed by Broadwood from Backers (1884)

 1. Key.
 2. Jack.
 3. Jack-operating spring.
 4. Cushion limiting rebound of jack.
 5. Button and screw regulating escapement of hammer.
 6. Hammer-butt and operating face.
 7. Hammer-butt pivot.

 8. Hammer-shank.
 9. Hammer-head.
10. Check.
11. Damper-lifter.
12. Damper-head.
13. Action-rails.