“…As Roe's (1968a) original identifications included a high proportion of flakes that were classed as being retouched due to natural edge damage, careful attention was paid to ensure that all flake tools contained genuine retouch following the methodologies of Baumler (1995), Andrefsky (1998), andInizan et al (1999), who also put more emphasis on how flake tools were manufactured rather than on the dimensions of the finished product We conducted a preliminary assessment of the increase in the number of flake tools within MIS 9 (Research Question 1) by comparing the non-handaxe, handaxe, and PCT assemblages. To determine if any longer-term trends could be identified in the numbers of flake tools compared to previous periods, we compared our data to assemblages both preceding and following MIS 9 based on published sources (Wymer, 1964;Singer et al, 1973;Ashton, 1992;Wymer 1993;Ashton and McNabb, 1996;Ashton et al,1998Ashton et al, , 2005Pope, 2002, White andPlunkett 2004;Gowlett et al 2005;Scott, 2011;Aldhouse-Green et al, 2012).…”