Are these Rolling Block parts?

[LtBlue531]

I got these in a box of gun stuff at an auction. Some of the parts were in an envelope marked "rolling block parts". I handled one Rolling Block about 35 years ago and that's the extent of my RB knowledge. Can anyone fill me in on what they are?
When you get to the photo album you can double click on each photo to make it a little bigger. http://fototime.com/inv/1A31DE2647F6589

[JAY HUBER RSA]

From your pictures I believe that most are Rolling Block Parts

[kenapr]

what are youre plans with your rolling block parts.my email is a1b2@fidnet.com