日期: 1807
尺寸: 5 x 54 cm
博物馆: Fundação Portuguesa das Comunicações (Lisbon, Portugal)
术: 木头
使用划桨或百叶窗(miniature)的 semaphore电报模型. 物体有被漆成石头的木质基座. 地基上是被漆成黑色的木结构,由三个长方形部分组成,中间部分比侧面部分高. 每一节都包含一条绳子所系的 " sutter " 。 绳子是用来把电闸移到不同位置的. 这类电报由弗朗西斯科·安东尼奥·西埃拉(英语:Francisco António Ciera)开发,用于葡萄牙皇家家庭的电报网络. 该系统的词汇有6万个单词和短语,根据百叶窗的位置(垂直或横向),允许多种组合的代码被传输.
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