Slim Jim    New Lock   Field Folder   Two Blade   McKay Creek   The McKay Creek Folder Made during the late '80s.     The Folding Field Knife This Lockblade uses a thong hole lock release. I started making these in 1977.  The Name is Photo Etched The handle is G10  The frame is machined 7075 Aluminum The Blade 154CM  This is a fairly recent one