Watch Dr. Lori identify a 175 dollar Nippon marked vase at an antique appraisal event and explain how the color of the mark helps you determine its value. Also, using the mark that does not include a date, understand how you can still date when the vase was made. Plus, a tip about how to help grandma and keep family heirlooms in the family. Read more tips about Nippon and what to look for.