BNAPS Re-entries and Constant Plate Varieties Study Group

1851 half pence major re-entry - position 84 on original plate
1851 ½d Pence Issue
Major re-entry, position 84 on original plate
1912 1c Green Admiral 12LR35 re-entry
1912 1¢ Admiral
12LR35 re-entry
1943 4c War plate 31 lower left plate crack
1943 4¢ War Issue
Plate 31, cracked plate
1978 14 cent Parliament, missing brick plate flaw
1978 14¢ Parliament
Missing brick plate flaw

Ralph E. Trimble established the Canadian Re-entries Study Group in 1981, and was its chair and newsletter editor for 16 years. During this time, he produced 71 issues. BNAPS gave him the John S. Siverts Award for best Study Group newsletter in 1989 and again in 1993. A few years after retiring from his Study Group activities, Ralph began building a popular and highly regarded website devoted to re-entries.

Following Ralph's tenure, Bill MacDonald took over as editor from 1997 to 1998 and Hal Kellett from 1999 to 2004.

Michael D. Smith reactivated the Study Group in 2014, and expanded the Group's scope from re-entries to all constant plate varieties on engraved stamps. He named the newsletter Dots and Scratches to reflect the expanded scope.


Newsletter Editors
First Series

From To Editor
1981 1996 Ralph E. Trimble
1997 1998 Bill MacDonald
1999 2004 Hal Kellett

Second Series - Dots and Scratches

From To Editor
2014 2019 Michael D. Smith
2020 2023 Scott Robinson
2023 James Jung

Other resources

Newsletter Index
Ralph E. Trimble, 1 Dec. 1993.
The index covers Vol. 1, No. 1, to Vol. 12, No. 5, Whole nos 1 to 62, 1981-1993.
File size: 7.7 MB

Canada’s ½d Plate Varieties (12.4 MB pdf) - Michael D. Smith
Re-entries and plate flaws with clear illustrations taken from the plate proof. References the plate of 120 for the imperforate stamp and the cut-down plate of 100 for the perforated stamp. Presented at the Re-entries and Constant Plate Varieties Study Group meeting at BNAPEX 2018 Quebec.

Three Pence Beaver Selected Re-entries and Plate Varieties (2.9 MB pdf) - Michael D. Smith
Description, including plate position, of selected re-entries and plate flaws with detailed illustrations to aid identification. Presented at the Re-entries and Constant Plate Varieties Study Group meeting at BNAPEX 2015 Niagara Falls.

Whitworth’s Plate Flaws on the One Cent Decimal Issue (6.5 MB pdf) - Michael D. Smith
Close-up illustrations from an early plate proof and issued stamps with detailed annotation of plate flaws reported by Geoffrey Whitworth in the 1960s. Version 2, revised in Jan. 2020.

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This page was last modified on 2024-05-18.