I can't lay blame for them making the forend iron or the pattern welded tubes, but other than that they pretty much did everything. Probably forged the frame & machined it? Schilling was a formidable concern that did a huge amount of heavy lifting up till WWI. They could have been the Poster Child for Ludwig Loewe machinery & maybe an outlet. When the business faltered or there weren't any apparent heirs, H. Krieghoff in 1919(not 1914) purchased all the machinery & it was this purchase that catapulted he & H. Krieghoff to be the next formidable concern that could support the current & next conflict. Speaking of outsourcing, during the 2nd Major Disagreement in Europe, the imported work force was housed in lean-tos between the shops / factory buildings.

Don't forget that as Disagreements consumed the workforce and mechanization had to be embraced more & more that there had to be more & more service personnel to keep the machinery @ full throttle. And a Service Industry developed & evolved.

Serbus,

Raimey
rse