19th century Aid-de-Memoire I don't own a card case, one of the many items on my "to buy" list. For something that acts as a holder of such significant small pieces of paper, card cases are so very important in making those lasting first impressions. This late 19th century Russian Aid-de-Memoire or case and pencil beautiful writing utensil, would do just that. -Khere on 1st dibs.