N450KR Gulfstream G-450 (G.IV-X) (MSN 4044) owned by Alsco Inc., of Salt Lake City, Utah, USA, at Perth Airport – Thu 5 November 2015. First visit to Perth. On final approach to runway 21 at 3:30pm, arriving from Subang, Malaysia. Alsco Inc was founded in 1889 and provides purchase, rental, leasing, and laundry services for linens and uniforms, and supplies washroom and hygiene products. N450KR was built in 2006 and initially registered N644GA by Gulfstream, then was registered N663CP with ConocoPhillips Company in August 2006, before being registered N450KR in April 2010. It was acquired by Alsco in August 2014. Photo © David Eyre