Image credits
The photographs on this site come from Wikimedia Commons. Each has been resized or cropped to fit its frame and is otherwise unaltered.

Savings book No. 880054 of the Polish Postal Savings Bank, account entries
Pocztowa Kasa Oszczędności · Public domain · Source

Remington Adding Machine Model 102 a

Comptometer Model WM
Ezrdr · Public domain · Source

NY stock exchange traders floor LC-U9-10548-6
Thomas J. O'Halloran · Public domain · Source

New York Stock Exchange, Manhattan, New York (7236984682)
Ken Lund from Reno, Nevada, USA · CC BY-SA 2.0 · Source

Thurgood Marshall United States Courthouse WTM3 NYU FC 0026
NYU FC (Wikis Take Manhattan 2009 participant) · CC BY-SA 3.0 · Source

Courtroom, Hannibal Federal Building and U.S. Courthouse (2013)
United States District Court for the Eastern District of Missouri · Public domain · Source

Doors Open Milwaukee 2023 37 (Federal Building, courtroom of Hon. Lynn Adelman)
Michael Barera · CC BY-SA 4.0 · Source

Abacus actually in use at kimono shop in Otaru

Franklin County Comprehensive Annual Financial Report 2008 (page 180)
Franklin County (Ohio) County Auditor's Office · Public domain · Source

Federal Reserve Bank, Cleveland, Ohio LCCN2010630382
Carol M. Highsmith · Public domain · Source

United States Treasury Washington DC 5383075936 o
Tony Webster · CC BY-SA 3.0 · Source

Us-treasury-building

This is a card puncher, an integral part of the tabulation system used by the United States Census Bureau to compile, NARA 513295
Unknown author · Public domain · Source

GSA, US Tax Court bldg
General Services Administration · Public domain · Source

Wall Street bubbles, Always the same, Keppler 1901
Udo Keppler · Public domain · Source