Perhaps much to the horror of some folks, one of my favorite notes and one that might be buried with me. Its a fairly common big bank in mediocre condition and, worst of all, I have a ton of duplicates with "minor" varieties. Turns out it was one of my first STL notes and the only STL bank to use engraved sigs. The note prompted me to actually research the bank at National Archives and to learn about the use of engraved sigs both in general and on this specific note. And the "dups" are different plate positions illustrating before and after sigs were added to the bank's printing plates - a simpler form of plated used by philatelists on early stamps. Illustrating the change of regs/practice is more easily done with big banks and this note is a nice example, at least for me. BTW, the first sheet issued with engraved sigs for this bank was 138000 and if I recall correctly this note was in the first printing using the modified plate.. There were 3x$10-$20 sheets printed for the bank as well, but never issued since there were sufficient stocks of earlier notes in the Comptroller's inventory for issue to maintain the bank's circulation. What fun!
Always interested in St Louis MO & IL metro and Evansville IN paper money, scrip, financial docs, banking ephemera, etc. Also collect Latvian 1915 - 1940 city and national paper money by block letter/variety