Manufactured in the early 1900s. The lower right side of the receiver is marked with a small crown over "HAANDVAABENVAERKSTEDERNE KJOBENHAVN.", the left side is marked "AUTOMAT./SYSTEM SJOGREN/PATENT.", "crown / S" proof on the left side of the receiver and barrel, and the matching serial number on the left side receiver, take down assembly ring and barrel. In addition there are various Swedish proof marks and "9618.1610.08 C 17.4" on the left rear of the barrel. Unusual action in that the entire top of the receiver slides (cycles) on rails on either side of the lower receiver. Tang safety and mounted with a multi point checkered forearm and smooth straight grip stock with a serrated black hard rubber buttplate with a molded "SAV" monogram. There is a sling swivel mounted on the front of the magazine tube and on the stock. 2 3/4 inch chamber, choked full and a 14 1/2 inch length of pull.