Vintage Salm DeLuxe 2-Blade Sleeveboard Shadow Pen Watch Fob Pocket Knife c1918-1925 Abalone

I have to give credit to another AAPK seller who so concisely and expertly detailed an identical knife for sale a few years ago.  The prior sale doesn't list the seller's username, otherwise I would give them due credit.  

This striking knife is a Vintage John Salm DeLuxe 2-Blade Sleeveboard Shadow Pen Watch Fob Folding Pocket Knife with a Carbon Steel Long Spear Point Main Blade with a Long Nail Pull, a Carbon Steel Pen Secondary Blade with a Common Nail Pull, a Fantastic Set of Genuine Fiery Abalone Scales that Maker John Salm is Known For,  a Single Nickel Silver Handle Pin in Each Scale as Well as the Two Rivets Attaching the Bail to the Scales, Brightly Polished Brass Liners, the Original Steel Bail Still Riveted to the Scales, a Single Polished Steel Back Spring, 2 ¼” in Length, Made by John Salm that was Located in Torrance, California and in Business From c.1918-1935 Though this Knife was Made Earlier Between c.1918-1925. 

John Salm, located in Torrance, California, almost exclusively made small lobster pen and watch fob knives to be attached to pocket watches and I guess later on for key chains. Almost all his knives had abalone scales with just a few made with pearl scales. From 1918-1925 his knives were stamped DeLuxe and from 1926-1935 he changed the stamping to SALM. This is one of his DeLuxe Knives made between c.1918-1925

You can see a clear crack in the abalone shell on one side of the handle.  Apart from that the knife is in remarkably good condition.  It still has snap and only negligible wobble.