Image of a compass from E. G. Lutz book "Drawing made easy, 1921, page 11. openlibrary.org/books/OL13446484M/Drawing_made_easy<br/>Lutz - 指南針<br/>compass、compasses、drawing-made-easy、drawing-tools、externalsource. lutz、geometry、mathematics、remix+266920、science<br/>羅盤、圓規、圖紙製作易、繪圖工具、ExternalSource。魯茨、幾何、數學、混音+ 266920、科學<br/>資料來源:openclipart ( https://openclipart.org/ )
修改日期:2026-05-29