As early as 1900, the majority of articles produced by Boeker were distributed in the US market. H. Boker & Co. in New York concentrated primarily on cutting tools from Solingen. Soon pocket knives became more important than scissors, shaving blades and eating utensils. The demand increased even more rapidly than Solingen was able to supply, so that the Americans in New York began their own production of pocket knives. A little later, pliers were included as well. Since the tree symbol had become well known by then and the various branches of the international Boeker family enjoyed an excellent relationship among each other, it was not difficult to receive permission from the Solingen relatives to use the tree symbol also for the American products. Since that time, two different lines of Boeker knives have been on the American market with the same brand symbol, sometimes even with the same article numbers, but one line was made in the USA and the other in Solingen. Only the declaration of marketability clarified that one line was from Boker USA and the other from H. Boker Improved Cutlery Solingen.