The crossguards are not standard honor dagger guards and are probably postwar enhanced. C&J is often found on postwar blades, especially those with special features, such as etching, faux damascus etc. The blade is more likely to be "false damascus" than the real thing. Hard to tell from the photos. "False damascus" blades were produced in the TR period, however. The blade itself looks suspicious, due to the high center ridge and the overall shape. The early blades were masterfully done. The grip appears to be original. The scabbard has the look of the "honor" type, but reproductions of them do exist. The ball on the lower fitting doesn't look quire right. The leather should not go beneath the fittings, but should be trimmed at their edges (impossible to tell from the photos). The leather grain looks a little coarse, but, again, it is difficult to tell. Repro fittings are made from thin, light-weight sheet metal. Originals are of sterllng silver or silver-plated nickel-silver. They have weight and thickness the reproductions don't have. It would take a "hands-on" examination to pinpoint the questionable aspects of this dagger, but there are enough flags (for me, anyway) to pass on this one. I hope this is of help.