She was glad I asked. Here's her response to my inquiry:
Hi Chuck,
Here is some information for you.
No. 3. Cadillac
5. Chrysler Royal
7. Edsel
10. Ford Customline
16. Lloyd-Hartnett
20. Morris Marshall
24. Renault Dauphine
We are really pleased that you made this enquiry, as, to our horror we found that 3 of the cards are missing from the set and we were in danger of selling an inaccurately described item. Consequently we have deleted that item from our Etsy store and it will now go back into our shop where the cards will be sold individually.
Regards
Susanne
Someday my cards may double in value and then be worth half of what I paid for them.