Six artillery shells at The Citadel, Halifax, Nova Scotia, Canada. They appear to <a href="https://en.wikipedia.org/wiki/Palliser_shot_and_shell" class="extiw" title="en:Palliser shot and shell">Palliser shot or shell</a> for the <a href="https://en.wikipedia.org/wiki/RML_7_inch_gun" class="extiw" title="en:RML 7 inch gun">RML 7 inch gun</a>. The projectile at far right is stamped on the stud, identifying it as Mark VI, of January 1877.
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