The "anti aircraft" photo is the same pressed steel sled mount placed onto wooden saw horses for more elevation. The Russian style wheeled mount was called a "Sokolov" mount. All the guns pictured are Maxims with different mounting options.
The muzzle device in the first photo might be the issue filling cup for the water jacket, (it looks very similar). It looks like it is doing yeoman service as a muzzle cover to keep out debris.
|