The scans are examples of the postcards in each lot.  Each lot will have 10  cards from 1905 to 1975.   Many of the cards will have stamps. Cards are picked at random so each lot will be different. 
My 4 , 5, and 7 year old boys pick them out at random. If there is something that your looking for I can let them know. (they like putting them together so you may end up with separate mailers if you order more than one)