1912 Ross cadet

Good day everyone! I acquired this 1912 Ross cadet this past summer. The rear peep assembly was seized and the "lollipop" aperture was broken off. I got the sight freed up and made a lollipop for it. I have seen pics of rifles with just the aperture hole in the lollipop and I have seen pics of a couple of rifles that have a removable aperture screwed into the lollipop. I have actually seen more pics without the aperture screwed in. Does anyone know if the rifle should have an aperture screwed into the lollipop or should it be the way I have it now. I'm thinking the rifles that had the screwed in removable apertures were modified at some point.
https://www.milsurps.com/images/impo...bd61a87d-1.jpg
https://www.milsurps.com/images/impo...f78af9af-1.jpg