"mk" - key terms from Wikipedia

beaufighter mk
blenheim mk
canberra mk
centurion mk
chieftain mk
corsair mk
cortina mk
cruiser mk
fiesta mk
hawker hurricane mk
hispano mk
hurricane mk
hurricane mk iia
hurricane mk iic
hurricane mk xii
inch mk
k mk
kittyhawk mk
liberator b mk
light tank mk
lynx mk
metal gear mk
mk
mk dons
mk ii
mk ii mini
mk iii
mk iv
mk ix
mk v
mk vi
mk vii
mk viii
mk xvi
mosquito b mk
mosquito fb mk
mosquito nf mk
mosquito pr mk
mustang mk
pr mk
sabre mk
sea hurricane mk
sea king mk
smle mk iii
spitfire mk
sten mk ii
super lynx mk
tempest mk
webley mk
webley mk iv