Hi and Question re Old Boker

[smiling-knife]

Hello. This is my first post in this forum. I am relatively new to collecting and like Boker slip-joints as well as old Sheffield knives. I posted this one in another forum so forgive me if this is repetitive or inappropriate. I am fascinated by this knife and wonder if anyone can provide me with any more information about it? I've included the link, but I can post the photos here if you like. Thank-you in advance.

http://www.bladeforums.com/forums/showthread.php?t=436425