German Heavy 15 cm Feldhaubitze 18, in production from 1935 to 1945, displayed in Hämeenlinna Artillery Museum, Finland. This howitzer was one of the mainstays of German artillery during World War II.<br>
In the background is a British <a href="https://en.wikipedia.org/wiki/Ordnance_QF_18_pounder" class="extiw" title="en:Ordnance QF 18 pounder">QF 18-pounder field gun</a>, of which Finland bought 30 intended for use in the Winter War.
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