Well... this is just my opinion, based off those photos, and probably not what you want to hear:
The bad news is two-fold. One, those are in pretty rough shape - looks like they were used hard, and not well cared for. They don't look like they're totally rusted up, so there is that. Two, they are all pretty common items - the Stanley Bailey pattern #5 jack plane is about as ubiquitous as they get. Think of them as the AK-47 of the hand-plane world
Unless it's a special snow-flake version with all original parts, they go for anywhere from $5 to $20 at flea markets, pawn shops, etc. Ones that have been restored go for slightly more.
The one with the red frog *might* be a Miller Falls #14 jack plane - that was something they did - but I'd expect to see their tricksy hinged lever cap as well, which it doesn't look like it has. Mine is a later vintage (50's-60's) #14C - it literally says "Miller Falls #14C" on the side of the sole. That doesn't make it a whole lot more rare than the Stanley, though, and from the looks of the length of that plane iron (extremely short), it's been ground down to a nub; it's almost guaranteed to need replaced. A new commercial plane iron will cost more than the plane itself is currently worth, unless you can find one at a flea market. The sole... looks like it was drug down a driveway or something. Probably going to require some elbow grease on about 60 grit sand paper to smooth that out.
The nicest term for those would be 'beaters', and the best case scenario would be to find someone who wants to set up a coarse jack plane for initial rough stock removal as a cheap substitute for a scrub plane. Some people do live for that kind of challenge, and could probably turn either or both of those jack planes into perfectly serviceable 'users' so they could live on - but again, unless they're something special, i.e. made during certain years, etc. etc. those folks aren't going to give you much for them.
By way of comparison, here is
a nicely restored Stanley #5, all tuned up by someone who knows what they're doing... for $60.
There are entire 'type studies' out there where people have mapped out which features correspond to when/where particular planes were made. Here's one for
Stanley planes, and one for
Miller Falls. And for more than you ever wanted to know about Stanley planes in general, there's always
Patrick's Blood & Gore page.
There's always a chance that one or the other of those is a hidden collector's item. Usually my luck runs the other way - I end up with "franken-planes". I have a #5C that I started getting excited about... it's got a specific quirky (and annoying) feature that tracks back to very early production in the 1880s. Unfortunately none of the other features line up - because it's been pieced together from a variety of donor planes. Still cuts wood, though.
