Mark XII or Mark 12 often refers to the twelfth version of a product, frequently military hardware. "Mark", meaning "model" or "variant", can be abbreviated "Mk."
Mark XII or Mark 12 may refer to:
Mark XII or Mark 12 often refers to the twelfth version of a product, frequently military hardware. "Mark", meaning "model" or "variant", can be abbreviated "Mk."
Mark XII or Mark 12 may refer to: