Name | Issues/Designs | |||
cogwheel | — | — | d - factory & cogwheels 1967, etc (2) | |
microscope | — | — | d - microscope & dhow 1964, etc (4) | |
oil derrick | — | — | d (2) - map & oil derrick 1968, etc (4), oil derrick 1959 | |
pipelines | — | — | d - pipelines 1959 | |
telephone dial | — | — | d - telephone dial 1974, etc (3) syns. rotary dial | |
torch | — | — | d - torch & map of Palestine 1968, etc (3) | |
traffic signal | — | — | d - traffic signal (1966) 1966, etc (2) | |
traffic signs | — | — | d - traffic signs 1970, etc (2) | |
wreath | — | — |