Manufactured in the first block of National Postal Meter production in 1943. Blade front and two-leaf rear peep sight, "6-43" dated Underwood barrel, unmarked Type I barrel band, "N9" flat top bolt, "N8" operating rod, milled trigger guard, "NH" hammer, unmarked push-button safety, "MN" magazine catch, and "MN" magazine. High wood stock with "TRIMBLE/TN" in the sling cutout and "NPM/FJA" boxed cartouche and crossed cannons on the right of the buttstock. Includes green canvas sling and oiler.