from "Wood-working Tools; How To USe Them - A Manual"
published by D.C.Heath & Co. Publishers, 1896
no author listed 肘部位置用於錘擊 Alphabet Word Images、externalsource、hammer、technique、tool、wood、working 字母詞圖像、外部源、錘子、技術、工具、木、工作的 資料來源:openclipart ( https://openclipart.org/ )