The metal planes have a lot of surface rust and don't appear to have ever been cleaned. There is a number 5 and a 4. The middle one does not appear to have a number. It's the same length as another number 3 that I have, but is a bit wider. It doesn't have any branding that I can easily see and doesn't appear to be anything special. The mechanisms look fairly modern. I may know more once I clean them up.
The number 5 is one of the Stanley aluminum body planes (1925 - 1935), I think. That would be a great find BUT it has a small section broken out of the cheek on one side. Doesn't affect the use, but I'm sure subtracts from the value. I'll take some before and after photos when I start restoring them.