A tri of aviation collectibles

ESSO GO NO GO flying checklist.  Never used

Dead Reckoning Computer  AN-C-74-A.  sparse information on this model but did find several sources that said was used by USAAF
One of the arms is broken but that does not impede functionality.  Seames on leather case are loose.  See pictures for condition issues

1973 St Louis Sectional Aeronautical Chart.  overall good condition but has tear on seam-pictured and writing.