Found these in a bag of gun sights. They look to be some form of scope base for a claw type ring.
Item 2 looks to be a Ruger type base that use some form of dovetail ring
Item 3 some form of blocks that mount to sight screw holes. Aint gota clue, any guesses from the peanut gallery? There were some barrel weights for a High Standard target pistol in the bag as well
Pics below

Attached Images
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Last edited by 348winchester; 08/13/22.

A bowhunter at heart but a gun guy at soul. I'll take craftsmanship, wood and blue steel over plastic and composite any day.