60390
The reverse design was revised to a recognizable laurel wreath , and future Chief Engraver Robert Scot had a hand in several minor revisions to the design over the next three years .
 Robert Scot
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Robert Scot