Haven't found earlier links to this ordnance site posted elsewhere so including a couple now:
http://www.lexpev.nl/index.html - I haven't gone through the text and photos in any detail but seems to include a considerable amount of WW1 material - I was mostly looking for some technical information on (WW2) Tellerminen which I found amidst the "manuals" section in:
http://www.lexpev.nl/manuals/index.html - mostly WW2 and after but I see some WW1 stuff in there as well, one or two in the German section, a few more in the British section - haven't looked much further than that so far.
Scanned military manuals, converted to PDF-Files says:
Scanned military manuals, converted to PDF-Files]This might be in my head only, but I think information should be free and available to everyone. So I decided to share my PDF-manuals with all of you, and hope you will do the same. It is not my intention to create the biggest platform on this, but what I get, I put online. You will find non-ammunition files here as well, but my intention is to publish mainly manuals on ordnance.
By clicking a country below, a list shows with the titles of manuals I have here in my computer. All the red links direct you immediately to the PDF-file. As some of the files are quite big, you best "right-click" and "save as", to download it directly to your computer.
All downloads are FREE. Help to make this FREE list longer! Do you have a scanned grenade or mine manual that's not listed here? Share it please! (mailto address)