This is a highly ornate illuminated letter 'R' from a medieval manuscript. The letter itself is large, black, and fills much of the central space. It's framed by a complex architectural structure. The letter is set within a white rectangular space, flanked by two blue columns adorned with white, rectangular ornaments. These columns rest on a highly decorated base with intricate carvings and a gold trim. Above the letter is a pink, rectangular structure with a small, cherubic face in the center. On either side of the pink structure are globes, each topped with a golden crown and adorned with crosses. Above the globes are angels with outstretched wings, rendered in shades of blue, pink, and white. They appear to be holding or supporting the globes. The entire composition is framed by a light beige background. At the very top, the number '138' is written in black. Below the base of the columns is a banner with the Latin text 'Rex omnis terra Deus psallite' written in black. There are also red circular seals with numbers '25' and '46' on either side of the banner. The overall style is highly detailed and decorative, typical of illuminated manuscripts. The colors are vibrant, and the use of gold adds to the richness of the image.