Hi fellas

been a long time since i posted on this site, everyone was helpful then and i am hoping again.
This post may be in the wrong forum, if so, my apologies, just let me know where to go or move it as you see fit.

Looking for some approximate values on some parts, first a Ross 1910 military aperture rear sight and mounting base and mag of the same rifle, both are in 90 plus condition and are functioning and complete. Looking for a range to give me some idea. I have seen auctioned sights for $250 that were very poor.

Thx for any help.