The handkerchiefs and pocket squares of Brussels based Simonnot-Godard are to my taste perhaps the very best of their type in the world. The pair in the top photo are 48 cm/18 inch cotton squares from the Lys collection, colored Verte vif and Cuivre respectively.
What appear to be two different handkerchiefs in the second photo are actually two sides of one design, the Madras weave in a 48 cm/ 18 inch cotton square. SG offers its handkerchiefs in three sizes, with 48 cm being the largest. The generous size costs only a little more while adding significantly to the flexibility of jacket pocket display.
The company's most popular items are its 8110 line of 50% cotton and 50% linen with colored borders. The ones in the photo are 48cm/18 inches square with hand rolled edges of gris and bordeaux respectively.
Fine cotton and linen squares like these are best paired with silk neckties, where the textures contrast. They also complement a tieless jacket beautifully. And [commercial on] there will be a dozen patterns in the ASW store for $50 per handkerchief including shipping within the continental United States [commercial off].