Does anyone know if some Mauser Type S rifles were not stocked all the way to the muzzle?

I have one in 7 m/m purchased years ago at Holts that has a stock ending about 2 inches short of the muzzle. All other features of the rifle are pure Type S.

I also saw one in 8 m/m online recently.

Wondering if these are factory rifles or if they’ve been modified. If the latter, seems like a strange modification to make, although I could see where it might be worthwhile for a rifle in the rack of a 1930’s safari vehicle.