Quote Originally Posted by safeman View Post
Hello Tom, here's the patent drawing from 1919. Late on the scene compared to Ratner (1913). I'm also attaching a photo of the device as fitted and also one having operated successfully after an explosive attack on a Tann Dreadnought in a London Diamond dealers plus an image of the Tann Newgate Street showroom making the most of their success.

Click image for larger version.  Name: Patent 2.JPG  Views: 23  Size: 43.7 KB  ID: 17206 Click image for larger version.  Name: Tann relocker 1.jpg  Views: 28  Size: 26.8 KB  ID: 17207 Click image for larger version.  Name: Altshuler Blown Dreadnought (2).jpg  Views: 27  Size: 353.4 KB  ID: 17208Click image for larger version.  Name: Altshuler blown Dreadnought poster Newgate St_edited-1.jpg  Views: 24  Size: 879.2 KB  ID: 17210
What a magnificent reply.
Thankyou -I love it that you have the same guy leaning in the doorway, a few decades apart.