Vintage Schrade Jigged bone Marlin Spike with "Schrade Blade Company" tang stamp

[mdenton]

I recently purchased some knives at auction and got a real nice vintage Schrade jigged bone Marlin spike with the tang stamp "Schrade Blade Company Walden, NY" I have looked at various publications and have not seen this tang stamp. Can anyone date the knife for me??

 

[brets-ftw]

see if you can get this to the traditional forum, lots of answers to be had there, and welcome to bladeforums!