Research Papers and Reprints Title Categories Update Date Download Research Paper #25 – Prominent Americans Series: Bureau Precancel Printing History1 326 downloads Research Papers October 10, 2022 Please login to download Research Paper #24 – The Scarce Imperforate 4¢ Ulysses S. Grant Stamp of 19081 249 downloads Research Papers January 14, 2022 Please login to download Research Paper #23 – The B.I.A. Check List of the Postage Stamp Booklet Covers1 240 downloads Research Papers July 18, 2015 Please login to download Research Paper #22 – A Census of Relief Breaks on the 1890 Two-Cent American Bank Note Company Issue1 134 downloads Research Papers July 18, 2015 Please login to download Research Paper #21 – Printing History of the 6¢ 1938 Airmail Stamp, Scott C231 128 downloads Research Papers August 26, 2015 Please login to download Research Paper #20 – Selected Records from the Files of the 3rd Assistant Postmaster General 1869-18891 94 downloads Research Papers August 26, 2015 Please login to download Research Paper #19 – A Type Written Transcription of the U.S. Post Office Dept. Stamp Bill Book Numbers for the Issue of 1870 Ordinaries, 1870-1879, Part One: The National & Continental Issues1 68 downloads Research Papers June 29, 2015 Please login to download Research Paper #18 – Printing History of Series 1922 Flat Plates Used for 2¢ Washington and Harding Memorial Sheet Stamps1 91 downloads Research Papers August 26, 2015 Please login to download Research Paper #17 – Printing History of 3¢ Stuart Coil Plates: Series 19321 68 downloads Research Papers August 26, 2015 Please login to download Research Paper #16 – U.S. Postal Insurance Booklets (1965-1985)1 116 downloads Research Papers August 26, 2015 Please login to download Research Paper #15 – Printing History of Series 1922 Flat Plates Used for Sheet Stamps1 107 downloads Research Papers August 26, 2015 Please login to download Research Paper #14 – Printing History of Coil Plates, Series 19221 82 downloads Research Papers August 26, 2015 Please login to download Research Paper #13 – Printing History of Rotary Sheet Plates, Series 19221 102 downloads Research Papers August 26, 2015 Please login to download Research Paper #12 – 1954 Liberty Series Plate Activity & Precancel Checklists1 147 downloads Research Papers August 26, 2015 Please login to download Research Paper #11 – Printing History of Second Bureau Plates Used for Sheet Stamps1 105 downloads Research Papers August 26, 2015 Please login to download Research Paper #10 – Printing History of 1¢ and 2¢ Stamps of the Washington-Franklin Issue1 190 downloads Research Papers August 26, 2015 Please login to download Research Paper #09 – Printing History of the First Bureau Issue Plates, 1894-19031 134 downloads Research Papers August 26, 2015 Please login to download Research Paper #08 – Printing History of Booklet Panes Plates, 1900-19541 158 downloads Research Papers June 29, 2015 Please login to download Research Paper #07 – Production Records for the 1903 and 1914-15 Printings of the "Roosevelt" and "Panama-Pacific" Small Die Proofs1 96 downloads Research Papers June 29, 2015 Please login to download Research Paper #06 – Printing History of Special Delivery, Parcel Post, Parcel Post Due, Special Handling, Registration, Official Mail and Postal Savings Plates1 159 downloads Research Papers June 29, 2015 Please login to download Research Paper #05 – Printing History of Washington-Franklin 3¢-$5 Denominations1 188 downloads Research Papers August 26, 2015 Please login to download Research Paper #04 – Half-cent Presidential Bureau Precancels. Plate Numbers and Positions.1 97 downloads Research Papers June 29, 2015 Please login to download Research Paper #03 – Dummy Stamp Booklets, 3rd edition, 19981 101 downloads Research Papers June 29, 2015 Please login to download Research Paper #02A – Supplement – Folded-Style and Pressure Sensitive Booklet Checklist, Updated 13th Edition1 195 downloads Research Papers June 4, 2017 Please login to download Research Paper #02 – Folded-Style and Pressure Sensitive Booklet Checklist, Updated 13th Edition1 225 downloads Research Papers June 29, 2015 Please login to download Research Paper #01 – Printing History of U.S. Postage Dues, Series of 1894 and 1930 flat plate printings1 148 downloads Research Papers June 29, 2015 Please login to download