I did an extensive search for Waterman and other pen ads a few years back. I have B&W and lot color images posted or linked on my Pinterest account. There are ads from a fairly broad array of sources. There are probably over 1,200 Waterman ads in that folder.
I have folders for A.A. Waterman, Onoto, John Hilland, LaBeouf, Moore, Chilton, Sheaffer, Parker, Wahl Eversharp, Dunn, Aiken Lambert, Paul Wirt, Marie Todd, Conklin, Salz, Esterbrook, Conway Stewart, Eagle, A. T. Cross, Beaumel, Crocker, Ulrich, Sanford & Bennett, Carter's, Laughlin, Cameron / Waverley, Caw's, Diamond Point, Grieshaber, and Camel.
If you want to browse, the link is below.
https://pin.it/7oiYxXa
Responses
www.newpentrace.net