The N Sample series is a series of seventeen folders that are housed in box 2 of the Lilac Hedges collection. The N series appears to be cards that are blank inside. Since the cards are sample cards each card is glued onto sturdy paper which includes the organizational number and the price of the card. Signed artwork includes artists such as: Clare Leighton, Ralph P. Hinchman, Shenton, Evelyn Curro, Hilary Knight, and Lanson Margot.

The O series is composed of only one card that can shares a folder with the N sample series. The card in the O series is a Christmas card created by Jac Venza. It is stored in box 2 of the Lilac Hedges collection.

The N series is a series of twelve folders of cards housed in box 2 in the Lilac Hedges collection. The N series appears to be cards that are blank on the inside; there does not appear to be any other thematic connection between the cards. Artists that have signed artwork include: one card signed by Andy Warhol (N 14) and cards signed by Ralph P. Hinchman.