I have had many of these over the years but can not fine a one of the them now. So I picked up this vintage Bates Model G List Finder to add to the collection. All the pages are full so a new refill is in order. The list finder itself works well and is in great shape. It will be put to work as soon as I find a refill. This item is from around the 60s I would think. Great item to add to your collection.