Traffic slide rule , 16 June 1952. Lieutenant Lou Fuller; Department Chief Bernard Caldwell; Sergeant D.C McCauley; Chief W.M Parker.California; USA.
Traffic slide rule , 16 June 1952. Lieutenant Lou Fuller; Department Chief Bernard Caldwell; Sergeant D.C McCauley; Chief W.M Parker.California; USA.
Traffic slide rule , 16 June 1952. Lieutenant Lou Fuller; Department Chief Bernard Caldwell; Sergeant D.C McCauley; Chief W.M Parker.California; USA.
Traffic slide rule , 16 June 1952. Lieutenant Lou Fuller; Department Chief Bernard Caldwell; Sergeant D.C McCauley; Chief W.M Parker.California; USA.
Children using slide rules, 1967. Photograph by Bob Hope for the Daily Herald newspaper showing children at St Leonard's School, Warlingham, Surrey....
Small circular slide rule, 1918-1921. Small circular slide rule, 1918-1921. Small circular slide rule in watch form, made in the UK. Metal case...
Fuller's spiral logarithmic slide rule, 1879. Fuller's spiral logarithmic slide rule, 1879. Made by W F Stanley. In a mahogany box with instruction...
Bissaker's slide rule, 1654. Slide rule, made by Robert Bissaker, 1654. England, United Kingdom, 1654.
learning objects: items required to get learning origami on wooden background. directly above and copy space - 計算尺 個照片及圖片檔
learning objects: items required to get learning origami on wooden background. directly above and copy space - 計算尺 個照片及圖片檔
learning objects: items required to get learning origami and origami paper made greeting card on wooden background. directly above and copy space - 計算尺 個照片及圖片檔
learning objects: items required to get learning origami and on wooden background. directly above and copy space - 計算尺 個照片及圖片檔
learning objects: items required to get learning origami on wooden background. directly above and copy space - 計算尺 個照片及圖片檔
learning objects: items required to get learning origami and on wooden background. directly above and copy space - 計算尺 個照片及圖片檔
learning objects: items required to get learning origami on wooden background. directly above and copy space - 計算尺 個照片及圖片檔
