TY  - GEN
AU  - Hambly, Maya.
TI  - Drawing instruments, 1580-1980
SN  - 0856673412
AV  - T375 
U1  - 681/.6 20
PY  - 1988///
CY  - London
PB  - Sotheby's Publications
KW  - Drawing instruments
N1  - Includes index; Bibliography: p. 197-199
ER  -