Welcome to the forum,
You are missing the one photo, which would provide the most information about the gun. This would be a shot of the entire upper part of the gun, then individual shots of the top of the toggle and the top of the chamber.
Is there a letter suffix after the serial number on the front of the frame?
Do all numbers match? you must take the gun down in order to determine if the trigger, bolt, hold open and firing pin also match the rest of the pistol.
Does the magazine have a matching number?
All these factors will influence value.
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