The pic is of illustration Figure 181, from page 399 of James V. Howe's THE MODERN GUNSMITH, Vol. II, last copyright in 1954. This section drawing on the Schmidt-Rubin is found in the chapter, REVIEW OF MILITARY SMALL ARMS. No mention of model numbers are found in the chapter, but the rifle illustration shows a straight gripped stock. Looking like a cross between an 1889 and an 1896/11. I like the look and feel of a straight grip. Any comments?