Symbols
Letterfolds
Basic Fold
Box-Lock Letterfold
Daisy Letterfold – Nick Robinson
DS Letterfold – David Shall – Luis Fernandez
Florentine Letterfold – Thoki Yenn
M-Letterfold
NB Letterfold – Phillip Noble
Square Letterfold – John Cunliffe – Shuzo Fujimoto
Valentine Letterfold – Francis Ow
W-Letterfold – Vittorio Brandoni
Envelopes
Anchor Envelope – Robert Harbin
Bar Envelope – Frances Levangia
Box-Pleated Envelope – Angelo Polidori
Butterfly Envelope – Fumiaki Kawahata
Cormetic Envelope – Edwin Corrie
Crane Envelope – Minako Ishibashi
Disc Envelope
Double-Lock Envelope – David Petty
Frog Envelope – John Cunliffe
Harlequin Envelope
Hawk Envelope – Hiroshi Kumasaka
Kenton Envelope – Kathleen Bleyer
Sack Envelope
Single-Lock Envelope – John Cunliffe
T-Flap Envelope – Martin Wall
Trap Envelope – John Cunliffe
Two-By-One Envelope – Vittorio Brandoni
V-Envelope – John Cunliffe – Traditional
Valentine Envelope – Sumiko Momotani
Wallet Envelope – John Cunliffe – H Ohashi
Thanks to Paula Versnick for compiling a credit list from the original material.