I thought his Baby Lugers were interesting. I think Ralph said his was borrowed to reverse engineer it.

I found the article that was in Guns & Ammo February 1999 called "Baby Boomer". Narrow (smooth sides) toggle width, 21 ounces, carbon steel, 6&1/2" OAL, 2 & 7/8" Barrel length. Six round mag in 32 ACP. The originals were very limited, 4 at least were made, two in 32 ACP, and two in 380 ACP, those were made by DWM's head engineer Heinrich Hoffman.
This is the one Ralph owned. I took this picture 2002 at the last Luger Forum convention. Sorry it is blurry.