Title: Gushichan Uēkata Sai On Bunjaku iroha ryūka (Ryukyuan iroha verse anthology by Gushichan Uēkata Cai Wen/Sai On).
This was handwritten by Mr. Kudaka (first name unknown) and printed on March 17, 1881. It is a selection of 47 iroha-uta verses,
composed by Cai Wen (J., Sai On, 1682-1761), who was a politician of late 17th-18th century Ryukyu. In addition, the difference
between Japanese and Ryukyuan iroha-uta is that Ryukyuan verses are always didactic. They also differ in terms of their mora
patterns: 8 and 6 in Ryukyuan verses and 5 and 7 in Japanese verses. *"Iroha-uta" refers to a series of verses, each of which
starts with a different letter of the traditional phonetic alphabet.