Symbols for techniques

Symbols for techniques
used in printed ex-libris
使用於藏書票的版畫技法符號

Intaglio printing techniques
凹版
Original
C = Intaglio printing (blank); embossing
C1 = Steel engraving
C2 = Burin (graver or gouge) engraving, notably on copper
C3 = Etching, including direct (brush) etching
C4 = Drypoint, including crayon manner and stipple engraving
C5 = Aquatint
C6 = Soft-ground or sugar etching
C7 = Mezzotint
C8 = Intaglio engraving on linoleum, plastic or other materials
Reproductive
P3 = Heliogravure (manual line and tone photogravure), photogalvanography
P4 = Commercial photogravure, rotogravure
P10 = Etched steel printing (die-printing)

Relief printing techniques
凸版
Original
X = Relief printing (blank)
X1 = Woodcut
X2 = Wood engraving
X3 = Linocut
X4 = (Chinese) stone stamp
X5 = Relief-printed engraved or etched metal plates, notably metal cut
X6 = Relief-printed engraving of other materials, notably plastic
Reproductive
T = Typography, letterpress
T1 = Linotype, monotype, indirect letterpress
T2 = Photoxylography, facsimile wood engraving
T3= Commercial rubber stamp / timbre en caouchouc commercial
P1 = Line block (clichŽ) with or without photography
P2 = Half-tone, photozincography

Flatbed, stencil and electronic printing techniques
平版 孔版 電腦製版
Original
L1 = Autolithography
L2 = Autography (transfer lithography)
L3 = Zincography
L4 = Algraphy
P9 = Original photograph
S = Stencil
S1 = Original serigraphy (silkscreen)
S2 = Mimeography (dye stencil)
S3 = Katazome and Kappa (oiled-paper stencil)
CGD = Computer generated design
Reproductive
P = Photographic reproduction
P5 = Collotype
P6 = Photolithography, process transfer lithography
P7 = Offset, including duotone
P8 = Serigraphic reproduction (photosilkscreen)
CRD = Computer reproduced design
Y = Photocopy, electrostatic screen printing

Other abbreviations
其他技法
MT = Mixed technique, used when component techniques are not known
B = Braille
U = Technique not listed above, including Frottage, Chinese rubbing and collography
Number preceeding the technical symbols = Number of plates used
/ number after the technical symbols = Number of colours used
/ mon. = Monotype
/ col. = Hand coloured