We are the European party in Parliament and among British people – Margaret Thatcher
Back when not only Ted Heath but also Margaret Thatcher were cited as pro-Europeans and the Conservatives wanted closer cooperation on foreign policy across the EU (the European Community as was), for the 1984 European Parliament elections:
We are the European party in Parliament and among British people – Margaret Thatcher
For more gems from past election leaflets, see my collection How leaflets used to look.