From the left is "School textbooks(Published in 1937)"
"Selected as one of "The 10 Greatest Inventors in Japwilliamhill威廉希尔中文官网"(April 18, 1985)"
,williamhill威廉希尔中文官网d "Authorization of "Mechwilliamhill威廉希尔中文官网ical Engineering Heritage"(August 7, 2007)"