1961 UNDERPAID MAIL MUNDFORD TO THETFORD. Envelope Mundford to Thetford with 2d Wilding cancelled MUNDFORD/THETFORD NORFOLK 22 JY 61, posted underpaid with boxed "2D/114/TO PAY LIABLE TO LETTER RATE" charge mark and 2d postage due cancelled THETFORD/NORFOLK 4 JY 61. (Ref 108133).
