Schrade Walden NY USA and 175.   I do not think this is a Case XX....See pictures and use your best judgement. No cracks or chips in its scales.  Bolsters are in good shape.  No snap left.  Could use a cleaning.  Blade is sharpened down.  Some shrinkage on scales.   SEE PICTURES. 3 5/8" when closed.  Single blade. Location D2-45