923-0427 - Apple - Base Stand for iMac 21.5-inch Early 2013 923-0427 - Apple - Base Stand for iMac 21.5-inch Early 2013 $121.50
923-0533 - Apple - Enclosure Stand for iMac 21.5-inch Late 2013 923-0533 - Apple - Enclosure Stand for iMac 21.5-inch Late 2013 $90.73
923-00028 - Apple - Rear Housing for iMac 21.5 923-00028 - Apple - Rear Housing for iMac 21.5 $498.05