A digitized version of Official catalog of 1893 Columbian Exposition:The World's Columbian Exposition, Chicago, 1893(books.google.com/books?id=It2xI5M9uQAC)

Type "1893 columbian exposition" into Google Image - will locate images. Examples:

The south half of the Government building was devoted to exhibits of Post Office, Treasury Dept, War Dept and Dept of Agriculture

In this list there is a link to this online book:columbus.iit.edu/bookfair/00264004.html

Going to Index view under Treasury Exhibit there are references on p.111-113 and 302 (only minor reference)columbus.iit.edu/bookfair/t.html

The links here will lead you to Ch7 for p.111-113columbus.iit.edu/bookfair/ch7image.html

To read the earlier E-Sylum article, see:QUERY: COLUMBIAN EXPOSITION TREASURY DEPARTMENT EXHIBITS INFO SOUGHT(www.coinbooks.org/esylum_v16n14a15.html)