Research Papers and Reprints Title Categories Update Date Download Research Paper #25 – Prominent Americans Series: Bureau Precancel Printing History1 341 downloads Research Papers October 10, 2022 Please login to download Research Paper #24 – The Scarce Imperforate 4¢ Ulysses S. Grant Stamp of 19081 256 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 251 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 138 downloads Research Papers July 18, 2015 Please login to download Research Paper #21 – Printing History of the 6¢ 1938 Airmail Stamp, Scott C231 139 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 99 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 72 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 98 downloads Research Papers August 26, 2015 Please login to download Research Paper #17 – Printing History of 3¢ Stuart Coil Plates: Series 19321 73 downloads Research Papers August 26, 2015 Please login to download Research Paper #16 – U.S. Postal Insurance Booklets (1965-1985)1 125 downloads Research Papers August 26, 2015 Please login to download Research Paper #15 – Printing History of Series 1922 Flat Plates Used for Sheet Stamps1 112 downloads Research Papers August 26, 2015 Please login to download Research Paper #14 – Printing History of Coil Plates, Series 19221 87 downloads Research Papers August 26, 2015 Please login to download Research Paper #13 – Printing History of Rotary Sheet Plates, Series 19221 105 downloads Research Papers August 26, 2015 Please login to download Research Paper #12 – 1954 Liberty Series Plate Activity & Precancel Checklists1 154 downloads Research Papers August 26, 2015 Please login to download Research Paper #11 – Printing History of Second Bureau Plates Used for Sheet Stamps1 109 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 200 downloads Research Papers August 26, 2015 Please login to download Research Paper #09 – Printing History of the First Bureau Issue Plates, 1894-19031 145 downloads Research Papers August 26, 2015 Please login to download Research Paper #08 – Printing History of Booklet Panes Plates, 1900-19541 175 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 100 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 165 downloads Research Papers June 29, 2015 Please login to download Research Paper #05 – Printing History of Washington-Franklin 3¢-$5 Denominations1 198 downloads Research Papers August 26, 2015 Please login to download Research Paper #04 – Half-cent Presidential Bureau Precancels. Plate Numbers and Positions.1 104 downloads Research Papers June 29, 2015 Please login to download Research Paper #03 – Dummy Stamp Booklets, 3rd edition, 19981 112 downloads Research Papers June 29, 2015 Please login to download Research Paper #02A – Supplement – Folded-Style and Pressure Sensitive Booklet Checklist, Updated 13th Edition1 202 downloads Research Papers June 4, 2017 Please login to download Research Paper #02 – Folded-Style and Pressure Sensitive Booklet Checklist, Updated 13th Edition1 243 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 156 downloads Research Papers June 29, 2015 Please login to download