z CASE XX USA 61549L SS 4.25 inch Copperlock Greenbone Converted DA switchblade knife

Vintage CASE XX USA 61549L SS 4.25 inch Copperlock Greenbone Converted DA switchblade lockback knife with file worked backspring and blade spine. Nicely converted to double action automatic knife with the shield as the release button. Can be opened manually or automatically (double action in this case). Knife measures 4.25 inches closed and 7 3/8 inches open with coined brass liners and nickel silver bolsters, button & pins. The clip blade is 99% full, or better with much of the original factory finish intact with lots of light scratches, file work on the spine and is stamped CASE XX USA 61549L SS on the tang. The scales (handles) are jigged green bone and in excellent condition and back spring has filework. The knife works great with blade tip well below liners closed, good snap and Tight lockup open. EX- condition.