For many years the leading expert on flare gun cartridges Horst Thielbörger was working on his book on European cartridges in cal.4 / 26.5mm and 1".
This is the first publication to cover European made cartridges of the 25mm to 28mm range.
Besides the majority of flare gun cartridges also CADs, mortar primary charges and others are covered (no hunting ammunition).
Sure a valuable source of information as lots of undocumented cartridges are treated here…
"Katalog der pyrotechnischen Patronen Europas"
Image count: 1761 cartridges+ (usually 3 images per cartridge) in color
Format: A4 softcover
Price: 55 Euro + shipping (from Germany)
Available from the author: Signalpistolen@gmail.com