VARIETY OF POSTAGE DUE TYPES & OTHER INSTRUCTIONAL MARKS: A group of mainly PPCs and a few covers 1895-1971, organised on file cards by year and with P.O. identified, showing a range of instructional markings applied by Welsh P.O.s. Mainly varieties of "1d" postage due but also inc. "½d" "2d", "3d", "4d" & "5d" postage due marks, some carrying postage due stamps. Instructional marks inc. "½d/POSTAGE/DUE FOR/RETURN/TO/SENDER", "Liable to Letter Rate/561" and similar, "Contrary to regulations/162" and similar, "Inadmissable at ...../2", "Found in Swansea/without contents" etc. (63 items) Cross Reference: WELSH INTEREST (Image)