These are two very fine Micro-Perçoirs (Micro-borers) from the La Madeleine site. Such implements are known in Europe since the Gravettian. Data about the function of these instruments during the Magdalenian are rare and seems to be confined to the material of only two sites:
- Rocher de la Caille ( Loire): A single 14C date (12.2 k.a BP) and the typology of the lithic assemblage, which appears to be transitional between the Middle and Upper Magdalenian, place the use of the site at the very end of the first half of the Bölling Interstadial. 159 perçoirs, microperçoirs and becs attest to precision boring/scoring, possibly of hard animal tissue, and it would seem that this occasionally involved the use of ochre given its recovery on a number of these pieces.
- The Verberie site at the Oise is also dated to the Bölling Interstadial. The site was a small hunting camp, focused on the interception and processing of migrating reindeer herds across the plains of Northern France. Micro-borers at this site were used for the perforation of bone or antler.