How do you know that the Sauer is "pre-war"? I could tell by looking but that won't help. The Bernardelli is the standard "Gamecock" model, as was once sold in the U.S. with extractors and double triggers. Hard to give a value without seeing the guns.
Which one do you like? Do either of them fit you? The Bernardellis I've seen of this grade were case colored, not blued.
Both companies made good guns so relative condition is more important than brand name. A real pre-war Sauer, would probably be a better made and finished gun and I would prefer that if it was sound, original and came somewhere near fitting me. I find the Bernardelli guns nicer aesthetically than post-war Merkels, Simsons and Sauers (all the same gun, really). You may not.
