This is the finest NPM M1 Carbine we have ever seen. All original April 1943 production. 1st block production with original high wood stock. NPM cartouche on right side with Trimble Trademark in sling well. Rear flip sight with TR on right and S on left.Type 1 barrel band and N on trigger housing. HN hammer. Original Underwood barrel dated 4/43 with flaming bomb. Trimble Nursery and Furniture made NPM stocks. NPM manufactured bolts, trigger housings, receivers and slides. Highly collectable and very rare M1 Carbine. NPM produced the highest quality carbines for the war. Call 570-592-2171 for more details.