I will ship with waterproofing and protection against folds. The case is not included. Immediate purchase is welcome! I am also selling many other postcards from the Reijin Exhibition. I will offer a discount for multiple purchases. 2-card set: 850 yen (including shipping) 3-card set: 1000 yen (including shipping) 4-card set: 1100 yen (including shipping) For sets including single cards priced at 700 yen, the set price will be the above set price + 50 yen. Please select "bundle purchase," and I will create a dedicated listing. Feel free to ask any questions in the comments! For those who want to purchase more than that number of cards, please consult me for pricing.