[enio45]

look like restamps to me....12-16 is for sure, the YH as u said should be parallel.., the dates are gang stamped ans should be in a perfect line across . . and many times, the do not get the center correct and are too far to the left, so the the day is slightly cut off....or maybe the punch the whole after the date is put on the wheel...anyhow they seem to be too perfect aligned left and right....also...id have to check, but the K19's usually have a dash in between.