11.75" barrel, 7.65mm caliber. Carbines have a gracefully contoured and finely checkered walnut forearm and detachable shoulder stock. Rear sight on this extremely rare variation is a five-position sliding model located on rear link. Area above chamber is blank. Serial range is three digits or under. This may have been a prototype, as less than 100 were produced. Model far too rare to estimate an accurate value.