To determine exactly which one you have, look for these visual cues:
(like a needle or carved bone) against a neutral background with a scale bar, it is the archaeological plate . Lv 38b 52 jpg
in a medieval script, it is a page from the Berceo manuscript . To determine exactly which one you have, look
You can find similar archival numbering in the Istanbul University Academic Archive. 2. Medieval Spanish Literature (Gonzalo de Berceo) Lv 38b 52 jpg
38b refers to a specific stanza or folio within the manuscript transmission (often the "F" manuscript).