The first addressographs were intended for printing names and addresses consecutively on envelopes and post cards. And so much time was saved on this one application that customers soon began applying it to other kinds of work in their offices. To do this effectively, it was necessary for Mr. Duncan to work out additional parts called "attachments" which permitted the addressing, listing and imprinting of names and other data on office forms of every nature. To illustrate: the dating attachment enabled users to apply the addressograph to their statement work. With this attachment - which can quickly be thrown in or out of operation - the current date is printed at the head of a statement simultaneously with the printing of the name and address. Further, to use the addressograph effectively for statement work, it was necessary to devise a skipping attachment - manipulated by the operator's knee - permitting him to skip the printing of impressions from address plates of those customers who had paid their accounts. By working out the listing attachment, Mr. Duncan made it possible for users to list names in one or more vertical columns on pay sheets, drivers' route sheets, dividend and trial balance sheets. This attachment automatically feeds the paper and spaces the proper distances between the printing of each address. Then came the electric bell signal and automatic selector attachments. Users of classified lists of names were enabled by these attachments to place tabs in sockets at the top and back of the address plates to indicate the different classifications on the list, such as " Buying Seasons," "Kinds of Products Wanted," "Territories," "Expired Dates," etc., and by means of these attachments, automatically select for addressing certain address plates, skipping the addressing of others.

Automatic Listing Attachment.

High Speed Automatic Feed Addresso-graph. Capacity, 7,500 Addressed Envelopes per Hour.

Automatic Envelope Feed Ad-dressograph. speed, 5,000 addressed Envelopes an Hour.

As the various uses for the adressograph increased, so the demand for different special attachments increased, until today, the addressograph addresses, lists and imprints names, addresses and other data upon every office form. The history of the addressograph has been one of constant development. With the growth of large lists, the demand for greater speed in addressing was answered by automatic feed addressographs. The Automatic No. 1 Addressograph was designed to automatically feed and address envelopes and cards at the rate of 4,000 to 5,000 an hour. In the Automatic No. 3 Addressograph we find the highest development of the system. This machine automatically feeds and addresses public service bills, insurance premium notices and receipts, cards, envelopes, circulars, etc., at the great speed of 6,000 to 8,000 an hour. The wrapper addressograph answered the demand of publishers for great speed and 100 per cent accuracy. This model of the addressograph automatically feeds wrappers from a roll and in addition to printing the name and address exact typewriter style, also prints the name of the publication and postal permit from electrotypes, indicates mail routes on the back of the wrappers, separates into a separate drawer the address plates of those people whose subscriptions have expired, and cuts the wrapper to the proper size - all at the speed of 7,500 per hour.