The most prominent "solid guide" or authenticated reference for this specific file numbering relates to:
: These files are composed of "segments" (Type-Length-Value chunks) that help software identify how to render the image data. 1_082.jpeg
: Identical file naming conventions (t.1 082.jpeg) are used for other digitized classic volumes, such as: Rodzina Brochwiczów by Eliza Orzeszkowa. The collected Polish works of Jan Kochanowski. Technical Details of JPEG Files The most prominent "solid guide" or authenticated reference