This study analyzed Sūtras copied in Gold on indigo blue Paper(紺紙金字 寫經)of two private collections in Seoul under the theme of bibliographic characteristics and illustrations. Through the records in front, two scriptures are known to have been prayed in 1319 by King Chungseon(忠宣王), the 26th king of Goryeo(高麗). He referred his work as Geumseo-Daejang(金書大藏, Tripiṭaka copied in Gold). There are three known scriptures of King Chungseon, but it currently released are Mahāyānasaṁgraha Bhāṣya(攝大乘論釋論) and Buddhanāma Sūtra(佛說佛名經). In this study, it was examined that Tripiṭaka of King Chungseon related to remnants of the Tripiṭaka discovered at Zhihua Monastery(智化寺), which is printed by Ayurbarwada Buyantu Khan(元 仁宗) in 1316.
First, in bibliographic characteristics, looked at the two scriptures of King Chungseon, and estimated the lineage of it by comparing Chunzamun Designation(千字文 函次), the classification system of Tripiṭaka. As a result, it found that two scriptures prayed King Chungseon have similar characteristics. In addition, Geumseo-Daejang is believed to follow a Designation system based on the Zhiyuanlu(至元錄), a list of official Tripiṭaka of the Yuan Dynasty. It is the same to the system of the edition of Zhihua Monastery. But considering that 30 volumes Buddhanāma Sūtra is only found in Goryeo Tripiṭaka, Geumseo-Daejang is presumed that the Goryeo Tripiṭaka was used as original. Also, the influence of Songseolche(松雪體) was shown in calligraphy.
Second, in illustrations, it was presumed that illustrations of King Chungseon were closely related to the frontispiece of Mahāmāyūrīvidyārājñī(大金色孔雀王呪經), one of the remnants found in Zhihua Monastery. In composition, front-facing Buddha with Dharmacakra-mudrā located center, eight Bodhisattva and two Monks are placed on the left and right sides of the Buddha. It is also confirmed in the frontispiece of Mahāmāyūrīvidyārājñī and often seen in other engravings of Xi-xia(西夏). Especially the two Kalavinkas of Mahāmāyūrīvidyārājñī's frontispiece, which are believed to be the original of Geumseo-Daejangjang's llustrations, are related to Xi-xia's Buddhist engravings. In iconography, it presumed that Dharmacakra-mudrā Buddha is Sakyamuni Buddha, Bodhisattva with Vajra is Vajrapāni . In addition, both the Bodhisattva with sword in Mahāmāyūrīvidyārājñī and with a scripture in Mahāyānasaṁgraha Bhāṣya are presumed Mañjuśrī. In style, llustrations of King Chungseon are strongly influenced by Tibetan Buddhist art, which is confirmed in the Buddha, Bodhisattva, and a sacred tree. However, a cloud pattern is similar to the illustrations of transcribed sutras of Goryeo in the first half of the 14th century. Compared to engraving of Mahāmāyūrīvidyārājñī, llustrations of Geumseo-Daejangjang are quite similar, but some differences are confirmed, which can be seen as adding new elements based on the engraving of the Mahāmāyūrīvidyārājñī.
From this point of view, it can be seen that Geumseo-Daejang is very closely related to the editions of Zhihua Monastery, which is based on the Zhiyuanlu. In the case of llustrations, stylistic characteristics of Tibetan Buddhist art are confirmed and showed the possibility that the Buddhist engraving image of Xi-xia was used. however, despite the importance of Geumseo-Daejang, the work was disclosed quite limitedly, so research on it could not be conducted in depth. If the work is released in the future, it is expected that more detailed research can be conducted.