There is certainly not phosphate on blade (1237) and under tangs, the finish of scabbards are more like matted and looks not in this light like typical blue, more as dull blue. The scrubbed markings is not so rare seen, mainly in late war period, the serials there were probably not stamped, there is only remains of series letters on bards, the cof other side we dont saw to this time, but You should compare the thickness of blade with other normal cof43 piece, same as You could compare the finish of the piece. Certainly the wood grips were dyed from obverse, which is not typical. I personally dont believe the 45 are dates on inside of grips.best regards,Andy