The 1915 US documentary "On the firing line with the Germans" has recently been restored and re-released. I found it on the Great war forums Other great war chat war on the Eastern front post It's at https://blogs.loc.gov/now-see-here/2016/11/on-the-firing-line-with-thegermans-1915 I had some problems watching it the film has a habit of sticking and I was only been able to watch 1 hr 32 min of 1hr 48 min of it. Film clips of Germany and Poland during the Germans 1915 offensive in the east. For landships.com many film clips of vehicals, artillery ect. also they had a film clip of an Austrian 30.5 cm howitzer being fired by an Austrian gun crew at 1:31.