[Proofed]

Can anyone give me any info on these miniature bronze Helmets, who, what, where, when, etc.. So far I havn't been able to identify them, one is marked 1914-18 obviously WWI the other is unmarked and I am assuming WWII. Were they from a series of miniatures. Any help would be much appreciated.
The Helmets are approx, 3-1/2" D X 3-1/2" W X 1-1/2" H not counting the marble