531 S42 + X20 ESSELEN, NOAC 2000, "ESSELEN GOES HOG WILD"
531 S56 + X24 ESSELEN, NOAC 2004, "ESSELEN GOES HOG WILD"
531 S75 + X31 ESSELEN, NOAC 2006, "ESSELEN GONE HOG WILD"
531 S86 + X41 ESSELEN, NOAC 2012, 55TH ANNIV.