There are many online archives of newspapers and magazines, such as archive.org. On this page I will show various advertisements by Monroe that I have found in such online archives. If you find any others in the archives of your own country, then please let me know at mechcalc a t jaapsch d o t net.
These advertisements are shown here for educational and research purposes only, and no copyright infringement is intended. If you are the copyright owner of any image, and object to its presence here, let me know.
© Copyright 2018 Jaap Scherphuis, mechcalc a t jaapsch d o t net.