Those with dates that are out of the accepted range are not correct models.
Serial number 701 is not dated and I believe was manufactured in early 1926. (SN 1 - 600 are dated 1925, and then 601 - 700 are dated 1926, and then dating was stopped for an unknown reason). Anybody that can find 685-700 with the proper acceptance on the right we would love to see pictures.
See this database sample (updated since book published)
1060 is suspect for 2 reasons, it was listed as a possible rework when sold, also, I have two sn 1060 in the book and both possess seemingly correct acceptance and proofs on the right, the other 1060 is not dated. The 2nd 1060 displays an acceptance marking consistent with a suffix manufacturer timeframe (but not quite), however, all other a suffix have a eagle 81 and a eagle 67
I have two much later serial numbers in my database with 1926 dates; however, there are 400 lugers made between these sns and the last confirmed dated examples. It is very hard for me to believe 400 numbers passed and they started dating again, and with the same date as they left off. In addition, one was sold on the World of Lugers listing years ago, and the listing did not state it was dated, yet is now. Again it is very hard for me to believe that Ralph would miss an opportunity to sell one as dated, any salesman would realize it was a serious folly to not state same, in several issues.