We won’t even try to paraphrase this direct quote from a website called 1000aircraft photos dot com (sorry for the format but we don’t want to create a link and cause them any problem) so here it is, with full attribution:  “06/15/2006. Remarks by Jack McKillop: ‘First of four production trial aircraft and first flown as N1881 on December 6, 1957. After service with Lockheed Aircraft Corp., this aircraft was sold to Friendkin Aeronautics and delivered on April 19, 1961. Friendkin sold it to Pacific Southwest Airlines on May 11, 1961 and it was re-registered N174PS. It was then sold to Regency Income Corp. on October 22, 1969 and re-registered N974HA and immediately leased to Holiday Airlines on the same day. Holiday Airlines purchased the aircraft on July 1, 1973 and sold it to Petroleum Investment Services on May 14, 1974 who leased back to Holiday Airlines on the same day. This 188A was withdrawn from service and broken up at Oakland, California, USA, in 1975′”  Unused internet card.  Grade: 1