You did not give the headstamps or case length but I’ll assume they are based on the 44 Magnum, even though the center one looks like it may be a 41 Magnum.
You have three wildcats that are typical of many that were designed and tried back in the 1950s and 1960s when 41 and 44 brass first became available. They went by many names. “Davis” and “Bain & Davis” being the two most common. The name (or names) of the designer is usually preceeded by the caliber, such as 357/44 Davis.
The idea was to produce a high-velocity revolver cartridge but things didn’t always work out as planned because bottle neck cases tend to freeze a revolver cylinder with anything approaching maximum loads.
Value?? The same as any other wildcat cartridge. And who knows what that is?? They are not particularly uncommon or rare. (If wildcat cartridges were valuable I would not be sitting here typing responses on the Forum. I’d be out on my yacht.)
Similar wildcats were tried with most other straight revolver cases, such as the 38 Special, 357 Magnum, 44 Special, 45 Colt, and others including the 30 Carbine, 45ACP, and cut-off 30-30, 30-06, and 308W. Calibers ranged from 22 all the way up to the maximum that the particular case would accomodate. Those that are used in single-shot or semi-auto pistols work fairly well and there are several factory cartridges that are based on them.