Jean_LAMESCH_Sliderules_Collection_BOX_JL11

1778_JEPPESEN_COMPUTER_CR3

1778_JEPPESEN_COMPUTER_CR3

Contemporary US JEPPESEN COMPUTER CR-3 from 1955, still sold today. Plastic corpus, 152mm diameter. One moveable disc with cursor on one side (left picture), two moveable discs on the other side (right picture). PLastic pouch, manual see here .