Some new finds
 

V10, carries a Mauser R&D inventory number, showing it spent its time there.
Apart from the V10 number and any lack of normal serial numbers (or proofs), the alterations to the frame ears show what it was used for:

When Mauser obtained the plans from Switzerland, they found they had issues with the Swiss opening curve / frame ear placement, which led to an unreliable functioning of the 4 inch .30 luger version of the pistol. Mauser started investigating the problem and found that the Swiss had tuned their opening curve / ears to the combination of their own barrels and .30 luger ammunition, causing issues with other calibers and barrel lenghts. Mauser cured the problem by shifting the curve some 2mm to the rear, which is visible in this pistol. The 'wrong' Swiss style frames, of which a number had already been produced, were marked with a small heart shaped stamp and were no longer used in series production of the Mauser Parabellum.

So V10 is a test bed for testing the new opening curve / modified frame ears, using one of those 'wrong' frames. The pistol currently has an early unblued barrel/receiver combo in 9mm luger and some other components that were not used in final series production, including the bordered grips.

The other pistol is one of a handful of Swiss 06/29 pistols that were sold to Mauser together with the jigs and drawings. Several of these pistols (documented are 10, 11 and 12), were 'transformed' to look like the Mauser Parabellum, late 1968, early 1969. They were made as promotional items for presentation on USA gun shows, while the Mauser Parabellum pistols were not yet ready for production.

This particular gun, number 10.0011, was sold to Interarms in January, 1969.

(Photographs are property of Hermann-Historica)

very skinny frame ramps. is this mistake?

I think it's a frame used by Mauser to fine tune the shape of the ramps for the intended future production of 9 mm pistols. IIRC, the dimensions/contours of the ramps, initially derived from the Swiss "recipe" and tooling which was passed to Mauser didn't do so hot to make the pistol function. Looks like gunsmiths/engineers ground the ramp faces until they were just right, then adjusted the new frame's design to match.

Congratulation Gerben for these two rare pistols.
In particular, the Display Model 10.00 11 is very desirable because as you already mentioned is a Swiss 06/29 reworked to fulfill the request of Interarms to have something to present to NRA and NSGA in 1969.

Important for people not really inside the numbering method of Mauser, do not confuse this pistol sn 10.0011 with the 11th pistol produced that is numbered 10.000011. So two different items and the 10.0011 is a great rare find!!

The sale invoice to Interarms is dated 24th of January 1969.
In the Mauser Photographic Archive, the photo of the "sister" pistol 10.00 12 is available and I attach it here.

I remind for who is interested in the certification of the Mauser Parabellum pistol from the original Mauser ledgers, the service I am providing here:
http://www.lugerlp08.com/mauser%20pa...tification.htm

Once more congratulation for these two rare beauties.

Mauro

By the way Gerben,
I have just reminded that I have in my collection the prototype V15, you can see it here:

http://www.lugerlp08.com/versuchsmodel%20v15.htm

It was the prototype used to verify the feasibility of the stock attaching part welded on the frame. The V15 was before in the Prof. Gminder collection.

Cheers,

Mauro