I believe the aircraft in question is the ill-fated Babcock LC-11 Ranger X551E, second of the three LC-11’s which had a career measured in months instead of years. Built in March of 1929, she was similar to her sister X7997 and NC889E, except that she had a slightly shorter fuselage and larger tires with smaller hubs designed to eliminate the need of shock-absorbers and allow landings on rough fields, hence the designation Ranger