1858 NORTHAMPTON SPOON (ORIGINAL)(RA106) ON COVER. Envelope Northampton to Market Harboro with Die 2 1d rose-red on white paper (SG40) x 2 in different shades lettered BI and QA, BI tied fine strike NORTHAMPTON/570 original spoon (RA106) AP 22 58 code C, QA tied fine strike '570' barred numeral. Unusual usage. (Ref 86148).