| Layered letterfolds | Elsje van der Ploeg | 9 | Rectangle | Простая |  |
| Basic Letterfold | | 9 | Any oblong | Простая |  |
| ADC Envelope | Sjaak Adriaanse | 10 | Silver rectangle | Простая |  |
| Post Envelope | Elsje van der Ploeg | 10 | Square | Простая |  |
| Bird Logo Envelope | Stephen Palmer & Wayne Brown | 11 | Square | Простая |  |
| Butterfly Envelope (JK) | José Krooshoop | 12 | 2x1 rectangle (A4) | Простая |  |
| Button Envelope | Edwin Corrie | 13 | Square | Простая |  |
| Capsule | John Cunliffe | 14 | Square | Простая |  |
| Card Envelope | Steve Biddle | 15 | Any oblong | Простая |  |
| Window Purse | Geneviève de Gouvion St. Cyr | 15 | 2x1 window envelope | Простая |  |
| Clasp Envelope | Keiji Kitamura | 16 | Square or oblong | Простая |  |
| Cover for Booklets | John Cunliffe | 17 | Any oblong | Простая |  |
| Double Flap Envelope | John Cunliffe | 18 | Square | Простая |  |
| Postal Knot | G. Davey | 18 | | Простая |  |
| Elite Envelope | Elsje van der Ploeg | 19 | Silver rectangle | Простая |  |
| Fish Envelope | Paul Jackson | 20 | Any rectangle | Простая |  |
| Century Envelope | John Cunliffe | 21 | Silver rectangle | Простая |  |
| Flapjack Envelope | John Cunliffe | 21 | 2x1 envelope | Простая |  |
| Hawk Letterfold | Elsje van der Ploeg | 23 | Silver rectangle | Простая |  |
| Heartslot Envelope | Edwin Corrie | 24 | Square | Простая |  |
| Pepi HaDa Envelope 2006 | Elsje van der Ploeg | 25 | | Простая |  |
| Binder | John Cunliffe | 26 | Any oblong | Простая |  |
| Letter Rack | Jeroen Hilhorst | 26 | Silver rectangle | Простая |  |
| Heart Envelope | Francis Ow | 27 | 2x1 rectangle | Простая |  |
| Longboat Envelope | John Cunliffe | 28 | Silver rectangle | Простая |  |
| Lighthearted Letterfold | Wayne Brown | 29 | Square | Простая |  |
| Marine Envelope | Marianne Klop | 30 | Silver rectangle | Простая |  |
| Pen Letterfold | Elsje van der Ploeg | 31 | Silver rectangle | Простая |  |
| Sail-Boat Letter Corner | José Krooshoop | 32 | | Простая |  |
| Pleated Envelope | José Krooshoop | 33 | Silver rectangle | Простая |  |
| Secret Letterfold 2 | José Krooshoop | 34 | A4 oblong | Простая |  |
| Secret Letterfold 1 | José Krooshoop | 35 | Any oblong | Простая |  |
| Squarium (Quarto) | | 36 | Square | Простая |  |
| Squarium (Envelope) | John Cunliffe | 37 | Square (from A4) | Простая |  |
| Vector Envelope | Victor Lashenko | 38 | Square | Простая |  |
| Triangular Letterfold | Elsje van der Ploeg | 39 | Equilateral triangle: silver rectangle or square | Простая |  |
| Top Hat Envelope | Edwin Corrie | 40 | Any rectangle (A4) | Простая |  |
| Windmill Letterfold | John Smith & John Cunliffe | 41 | Silver rectangle | Простая |  |
