Canadian Provinces - New Brunswick #3P. VF condition proof pair (large Hinge Remnants) and single in black on thin card of the Unitrade listed 1851 issue 1 shilling imperforate, plus another proof single printed on regular paper stock. This single has had a bluish/purplish ink unevenly applied (as a test?). Only the three proofs on card have been valued. 2017 Unitrade.