1969 Centennial Luncheon Program Cincinnati 100 Years Baseball + 1st Day CoverCentennial of Baseball September 24th, 1969 luncheon program at Cincinnati to celebrate 100 years of pro baseball + honoured with US Postal Service issuing a Centennial of Baseball stamp . Stamp is included in the program with a first day of issue cancellation . Luncheon is followed by Dodgers vs Cincinnati Reds game at Crosley Field Measurements: 9" x 12" Excellent condition; very minor staining throughout. Check out all our other vintage historical