Front sight band marked "A"

[Chuck Russell]

I wasn't sure what the difference was between a Springfield "7" and a Rock Island "7" on the sighting scale. I have a Springfield that was overhauled by Rock Island during the WW1 period. The elevation slide must have been replaced by Rock Island using one of their manufacture. The difference is obvious: Rock Island-straight leg; Springfield-bow leg. The third form of "7" can be seen in a photo from Nick Ferris' book, "Rock Island Rifle, Model 1903". The "7" on an original RIA 1905 modification M1903 rifle is pretty fancy. I hope the photos are helpful to fellow newbies.