A crossed letter is a manuscript letter which contains two separate sets of writing, one written over the other at right-angles. This was done during the early days of the postal system in the 19th century to save on expensive postage charges, as well as to save paper. The technique is also called cross-hatching. This is distinct from a palimpsest as manuscripts were written this way at one sitting or for the same purpose (such as a diary), rather than being re-used later. == References == == External links == Media related to Crossed letters at Wikimedia Commons...

Boustrophedon /ˌbuːstrəˈfiːdən/ (Ancient Greek: βουστροφηδόν, boustrophēdón “ox-turning” from βοῦς, bous, “ox”, στροφή, strophē, “turn” and the adverbial suffix -δόν, "like, in the manner of"; that is, turning like oxen in ploughing) is a kind of bi-directional text, mostly seen in ancient manuscripts and other inscriptions. Every other line of writing is flipped or reversed, with reversed letters. Rather than going left-to-right as in modern European languages, or right-to-left as in Arabic and Hebrew, alternate lines in boustrophedon must be read in opposite directions. Also, the individu...