I'll be superalmagamated! Here is a non-functional prop Doc Savage Machine Pistol based on the descriptions I've read in the novels. I am showing both the unpainted version and the rub 'n buff versions. I have included an STL file in the Download STL/CAD Files section (sorry, no color 3MF file for this one). I have also included a free commercial license for those who want to sell their prints.