Systematic filenames generally follow a "prefix-identifier-sequence" structure. In this case, "Kl_SS_BS9" likely functions as a category or batch code. In professional photography or scientific research, prefixes often denote:
"Kl" might represent a specific project site or client name. Kl_SS_BS9 105.jpg
"SS" frequently stands for "Site Survey," "Sample Series," or "Social Subset." " "Sample Series
The Logic of the Invisible: Understanding Systematic Digital Identifiers Kl_SS_BS9 105.jpg