These classification sheets should be filed alphabetically in the file used for the rate cards, and they should be printed on stock of a different color. Most shippers will need but a few of these sheets as the number of articles shipped by one house is small, as a rule. If a large number of articles is shipped, the classification index is of even greater importance. A suitable form for this index is shown in Fig. 4.
=Commodity=Rate File.= When any part of the goods shipped are subject to commodity rates, a file of commodity rates is fully as important as class rates. A commodity-rate file is arranged on similar lines to the file of class rates. A card or sheet is used for each town to which commodity rates apply, and the cards are filed alphabetically by names of towns. These cards can be filed with the class rates, but a distinctive color should be used.
The record should give the names of the articles taking commodity rates, manner of packing, the point from which the rate applies, the rate, the number of the tariff, and the name of the issuing railroad. On the line below the name of the town appears the caption, _see also_. This is for the name of some other point to which a commodity rate applies. Boone, Iowa, for instance, may not be a commodity point, though a special rate from Chicago to Clinton is in effect. The Boone card would refer to Clinton, and the card for that town would show the rate. Fig. 5 shows a form for commodity rates.
To compile such a record of rates as has been described, requires an initial expenditure of much labor, but is a profitable investment. When once compiled, changes can be recorded with little trouble. These files will always be valuable for reference, not alone to the shipping clerk but to the sales manager and the purchasing agent as well.
A comprehensive knowledge of classifications and rates will prove valuable not only to the shipper, but to the receiver of freight. It will save any merchant many dollars in freight charges on goods purchased f. o. b. point of shipment. The shipper may not pack his goods in a manner to secure the lowest rate, or he may not give the proper description in the shipping bill. If his attention is called to the matter by a customer, he probably will make the necessary changes in his methods.