Two binding cases of maintenance records associated with 1978 grapple yarder “78A” owned by Valleau logging. The records span 1978 to 1991 and illustrate the meticulous detail Lawrence Valleau, and then his son David (Davey) provided in service records for equipment used in logging operations. Also see Archive accession number 011.18 for a 1993 video of machine working at Ryan Creek. See accession # 014.26.01 for history of Valleau logging.