Registered office The 2020 AssociationBonamy HouseSt. James StreetSt. Peter PortGuernseyGY1 2NZ The Guernsey Post 94 pence stamp shows Bonamy House that was designed for John Collings in 1817. It has been owned by the same family ever since.It was about this time that the “The Guernsey Experiment” took place.