Waterman have had their ups and downs over the decades, but their moderately-priced flat-tops were very popular in Britain in the 1930s. They can be a bit confusing, because similar-at-a-glance pens appear from the USA, Canada, England and from Jif Waterman in France.
This one is a Waterman 3 made in Canada, and is typical of the Canadian output with its box lever and riveted clip. The colours are outstanding and the beautiful fine No3 nib has great flexibility.
Many of these pens have flexible nibs, and though they weren’t expensive when new, they have proved durable and they restore well.