French Leaf from a Breviary ca. 1150

Protogothic script has an oval aspect and has specific letters that make it easy to identify the script. S’s have a bar to the left, b’s with a club head, and a variation of d’s either with a curve to the ascender or a vertical d.   

Breviary. France. ca. 1150. Leaf Measurement 192 x 277 mm. Text Measurement 163 x 250 mm. Text, Psalm 138. In Latin. Script: Protogothic and Roman Rustic Capitals.

Detail of Leaf from a Breviary

Roman Rustic Capitals are the red letters in the bottom line