38b refers to a specific stanza or folio within the manuscript transmission (often the "F" manuscript).
You can find similar archival numbering in the Istanbul University Academic Archive. 2. Medieval Spanish Literature (Gonzalo de Berceo) Lv 38b 52 jpg
in a medieval script, it is a page from the Berceo manuscript . 38b refers to a specific stanza or folio
Plate 38b in these contexts often depicts bone artifacts or ivory carvings from the Late Antique period (4th–5th century AD), such as decorative pins or small tools. Lv 38b 52 jpg
In Hispanic studies, "" is an abbreviation for Loores de Nuestra Señora , a work by the 13th-century poet Gonzalo de Berceo .