I just received a copy of Rifle&Carbine98 by Dieter Storz, and saw the Mauser 1918 rifle which was briefly described as “Mauser Militärgewehr Modell 1917/18” designed by Fidel Feederle in Collector Grade’s Sturmgewehr! From Firepower to Striking Power.

Additionally, Dieter’s book claims it as Mauser Oberndorf’s own design, while the M98/17 rifle was lost.

And here are some other posts that I’ve read about Mauser 1918 and M98/17.
Gunboards post about Steyr M30S
Gunboards post about Steyr M17/30
Does the Mauser 1918 or the M98/17(which is a different design) have any connection with later designs such as Steyr M30S, M17/30, Hungarian trial 33M, and Chinese Manchurian Liao Type13?

Additionally, Dieter’s book claims it as Mauser Oberndorf’s own design, while the M98/17 rifle was lost.

And here are some other posts that I’ve read about Mauser 1918 and M98/17.
Gunboards post about Steyr M30S
Gunboards post about Steyr M17/30
Does the Mauser 1918 or the M98/17(which is a different design) have any connection with later designs such as Steyr M30S, M17/30, Hungarian trial 33M, and Chinese Manchurian Liao Type13?