The reference appears to be a specific image file identifier used in academic or archival catalogs, most likely related to archaeological sites or biological research.
: This paper includes detailed illustrations and photographs of male genitalia and adults, often indexed by preparation numbers. GP2299_065.jpg
: New and little known Tortricidae for the fauna of East Turkey (2016). The reference appears to be a specific image
Relevant research often focuses on the and the architectural history of the Tempio Tetrastilo . 2. Biological Research: Bacillus subtilis GP2299_065.jpg