Posted Phil. at National Air Races, Sep 4 1926, 915 am; canceled with cachet type 13b.
Transit marks: AMF NY, Sep 4 1926, 10 am; NYC, Sep 4 1926, 2 pm; Clev. Sep 5 1926, 1130 pm.
Presumably forwarded by train to Lock Haven; no arrival postmark.
Title tells it all - no reason to repeat.
However - this exercise stimulated the review of the National Air Races announcement
[PB 14159, 18 Aug 1926] which is very informative.
Announcement is replicated below for the record.
Will be reviewed when National Air Races mail is addressed.