Our imagination about the Solutreen is biased towards a large numer of intact Leafpoints (http://www.aggsbach.de/2010/10/solutrian-points-from-the-placard-cave/), left in place by H. sapiens at the LGM. In reality most large Leafpoints from the Solutreen were found as fragments. This fragment of a non-finished Solutrean Leafpoint comes from Laugerie basse / Les Eyzies (Dordogne). This basal fragment broke during the early manufacturing process, if we extrapolate from the data of the open-air Solutrean site of Les Maitreaux (Bossay-sur-Claise, Indre et Loire), which was excavated by modern techniques.
For those, who do not have a personal copy of Smith`s seminal work from the 1960ies: here is the link for the heavy weighted pdf-copy (134 MB!)