Originally Posted by
Travis98146
Unless someone swapped out the butt stock. My 1927 99 has the serial number stamped on the inside of the butt plate and had it on the inside of the forearm. Royal's book dates the serial number as either 1922 (237501-244500) or 1923 (244501-256000) and also shows a 99H manufactured in 1923 that had a 20" round barrel. There's also a photo of an 99G (1923-1932) in 250-3000 with a pistol grip butt stock and checkering. I'd say to get/borrow a copy of his book. He may not be perfect but his pictures are of existing rifles.
Of course, all of the above information may not mean anything as it came from Royal's book. According to a moderator, any information from his book is worthless so please just take it with a grain of salt.