The catalog costs only 700 yen. No, but there are stamp shows and antique fairs where postcards also sold. There are also flea markets held at shrines on weekends. We are probably the only one in Japan dedicated to postcard collecting. A complete list will be provided in Postcard Books.
None are in English.
See Andrew Watt's article on this subject. Here are some helpful key words and phrases and their Japanese equivalents. Postcard collecting is my hobby. I want thirty New Year's postcards. The Postcard and Paper Collectible Club of Japan.