30 large postcards in a book, perforated for easy removal. Thirty favorite images of children enjoying the holiday season from our treasure trove of vintage Christmas postcards. Children, in their innocence, appreciate Christmas in a direct manner that is too often lost to us as adults. We celebrate this phenomenon in our Christmas for Children. The end of the 19th and the early 20th century were a rich time for postcard publishing. Millions of postcards were produced, sent and enjoyed. Almost every subject was explored, holidays of course being a favorite occasion on which to mail a card, and Christmas prime among those holidays. Imported.