It shows a menu board for concessions and game tickets at Wrigley Field in Chicago for the year 1967 (relying on information from the source).
In order to see what these prices are in today's dollars, multiply each number below by 7.43 (using the Bureau of Labor Statistics (BLS) inflation calculator)
Go to Wrigley today and you will pay about $5.50. That is a factor increase of 18.33 from 1967, or a 2.5 times (18.33/7.43) increase over stated inflation.
There are lots of comparatives you can do with this menu board over a broad range of goods shown here. A nice way to help students understand the effects of inflation.