https://wiki.militaryconflictvietnam.com/index.php?title=Flare_Guns&oldid=11047
Flare Guns - Military Conflict: Vietnam Wiki
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https://www.machinegunboards.com/forums/index.php?/topic/14517-post-war-german-geco-flare-guns/&do=reportComment&comment=132635
Post-War German Geco Flare Guns - Flare Gun Forum - MachineGunBoards.com Forums
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