British Postal Stationary
A large number of older postal stationary items from Great Britain shows the Royal coat of arms with its Heraldic Lions in the capacity of a Post Office logo of sorts. Including all such items would make this a general listing of British postal stationary, and we do not see that as within our scope. We thus list only items with cats in the stamp indicium or in the cachet.
(Should you, however, wish to make a list of all items showing the CoA, we'll gladly publish it or link to it......)