Signedon handles: ACCO
FunctionUsed for punching holes in the tape used in paper tape timers of B. F. Skinner's psychology experiments. See, for instance, 1999-1-0012 (timer) and 1999-1-0053 (paper tape).
Historical AttributesUsed in B. F. Skinner's psychology experiments at Harvard University.
ProvenanceProfessor John Michael Harrison, Department of Psychology, Boston University, pre-1998; gift to CHSI, 1999.