Sold: $12.45 plus unknown shipping.
23 x 15 cm - 24 pages. En très bon état - Plat arrière un peu frotté (In very good condition - Rear cover a little frayed)
Although the seller doesn't mention it, this program is from the last 6-Day race ever run at the Velodrome D'Hiver (Winter Velodrome) in Paris, November 1958.
Second photo shows Anquetil, Derrigade and Coppi were among the combatants. According to Wikipedia, multiple world champion Roger Riviere also raced the event.
The Wiki article shows the Vel' d'Hiv' had a pretty wild and sad history. It served as everything from muse to Hemingway, detention center during the Nazi occupation of Paris, to performance space for Salvador Dali.
The velodrome was destroyed by fire in 1959.