Although known for his violins, Wilkanowski also produced a limited number of archtop guitars. The guitars were never catalogued. By 1942 he had sold 30 of these instruments, each unique in appointments and features, at $400 each, except for two deluxe Airway guitars, sold for $600. This price was in line with what was being charged for a D’Angelico New Yorker, or a Gibson Guitar Corporation Super 400. There is no evidence of guitars made by Wilkanowski after 1943, instead he continued making and successfully selling violins until 1952.