In 2005, the Henri Selmer company of Paris embarked on a five-year adventure honoring each of the continents by depicting a native bird in highly detailed hand crafted engraving on its new Reference Series saxophones. For 2006, Selmer (Paris) selected the kookaburra bird from the Australian continent. Selmer Paris "bird" models are based on the popular Reference 54 Series saxophones, capturing the essence of the famous Mark VI instruments made in the 1950s and 1960s. Model 72KBSTD Selmer Paris will produce 330 of the standard edition kookaburra alto saxophones for the United States and Canada. The standard kookaburra will feature deluxe hand engraving on the bell, along with a unique case. Unique bore designs and high copper content in the brass give these saxophones an amazing traditional sound. The use of small rib plates create quick response. Blued needle springs provide quick, precise action while adjustable right hand thumb rests deliver greater comfort and facility.