Claude
This First Day Cover features no traditional cachet artwork on the left portion of the envelope, which is plain white. The cover uses a USPS postal stationery envelope with a pre-printed 29-cent blue star design (USA 29) in the upper right corner, combined with an affixed 7.5-cent Racing Car 1911 presort stamp showing a vintage racing automobile. The postmark is a pictorial machine cancellation commemorating the 75th Anniversary of the Indianapolis 500, featuring the iconic Indy 500 logo with checkered flag design, dated May 18, 1991 from the Indianapolis Anniversary Station, ZIP 46224.
Mistral
This First Day Cover commemorates the 75th Anniversary of the Indianapolis 500, featuring a black and white cachet with the iconic Indy 500 logo, including a checkered flag and winged wheel design, along with the text 'INDIANAPOLIS 500' and 'MAY 18 1991.' The stamp is a 7.5-cent purple presort stamp depicting a vintage 1911 racing car. The cover has a pictorial machine cancellation with the text 'INDIANAPOLIS, INDIANA 46224' and 'ANNIVERSARY STATION' with a small image of a racing car. The envelope is a pre-printed postal stationery with a blue star and 'USA 29' in red.
(The automatic summaries sometimes misidentify the postmark as part of the cachet artwork.)
