[lugerholsterrepair]

Flo..A fine looking pistol..If it were mine I would give it a good bath with mineral spirits and a toothbrush. Then dip it in motor oil and work over the red rust areas with 0000 steel wool dipped in oil. As long as it's oil soaked it won't harm the rust blue. Once you think you have the rust off dip it back in your bucket of paint thinner and look it over in bright sunlight. You will see the places you missed.

You might want to consider further breakdown of parts like removing the sear, the grip safety, magazine button, holdopen and many of the parts under which rust and grime hide if you want to do a really bangup job of it. A lot of manual labor and attention to detail...Be sure you take a stiff brush to the mainspring area..lots O gunk in there!