Spencerian Ruler - 史賓塞體專用工具尺

This ruler designed by Aquino da Silva in 2017, is very handy lining tools. The ruler is the size of a credit card and is suitable for daily practice or lining on small cards and envelopes. Engrosser's Ruler has x-heights from 1 to 3 mm and a 52-degree slant angle.

這把間尺試是阿堅奴於2017年設計和生產。尺寸只有一張信用卡的大小，是非常方便攜帶的間尺工具，適合日常練習使用，尤其是應用在信封或小卡書寫。 書寫X字高由1至3毫米，傾斜角度為52度。