Run by Horatio Barber from sheds 5, 6 and 7 at Hendon, the ASL produced this aircraft design (by Barber) as their main production model. Here Barber is delivering an aerial cargo, a box of "Osram" electric light bulbs, to demonstrate that aircraft can be used to deliver urgent items and mail. The designer of Boulton & Paul Aircraft, J. D. North, was apprenticed to ASL and learned part of his trade on this design manufacture. About 30 no. one to three seat versions were made. ASL closed in April 1912 when both Barber and North moved to Grahame-White Co.