Couple more World War II artillery pieces, utilising a lot of common components hence the similarity. Especially in FD Scale.
BL 4.5" Medium Field Gun Mark II:
And mounted on the same carriage, the shorter but slightly bigger bore...
BL 5.5" Medium Field Gun:
Yes, there's (inevitably) self-propelled what-if versions on the way, mainly to equip an AU country I'm working on with second-hand SP guns in the mid-late 60s.