Out of my league here, antiques and 12x ish style handguns, help?

[Donny Fenn1]

I've been approached by a local guy who has some old rifles and pistols he would like to sell they are not from my area of expertise. Any body want to help with valuation? He has his 12x and they are all registered but I think he inherited them so he doesn't know much about them.
Here are some pics. The rifle is a Remington Rolling Block in 32 cal. You guys know more about the pistols than me.

I'm not acting as the broker, I can forward the values to him.

 

[Shane111]

Bottom is a 1903 colt hammerless
The engraved with mother of pearl is a baby browning

Edit: the two i mentioned both have models for sale on the ee

 

[oneadam12]

Nickel plated revolver on top of the picture with 3 is an Iver Johnson Safety Automatic revolver, probably a .38 but could be a .32. Has the owl in the grip. Hard to say which generation without some serial # info. Not terribly collectible, the original 'Saturday night special' inexpensive revolver.

 

[Donny Fenn1]

Thanks guys.

 

[Milspectacles]

The middle right is a reproduction pepperbox made by CMC and bottom left appears to be some kind of baby bulldog revolver most likely made in Belgium and possibly antique depending on caliber