| SM | Stock Car for transportation of stock on the hoof, equipped with roof, slatted sides and side doors, single deck, with or without feed and water troughs. |
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| SF | Stock Car for transportation of stock on the hoof, equipped with roof, slatted sides and side doors, double deck, with or without feed and water troughs. |
| SC | Stock Car for transportation of stock on the hoof, equipped with roof, slatted sides and side doors, convertible from single to double deck, with or without feed and water troughs. |
| SD | Stock Car Composite, having drop doors in floor and means of housing in sides and making drop bottom box car. |
| SH | Horse Car for transporting horses in freight service. |
| SP | Stock Car Used in poultry trade, fitted with roof and sides usually of wire netting, fitted for shelves for storing crates of poultry and leaving space for poultrymen, feed bags and watering facilities. |