Another slightly cheaper model was the 'CSB' - possibly for "Model C School Boxford". This was offered during the 1950s and 1960s and was, in essence, just a short bed (16" centres) Model C but with a simplified 8-speed drive where a modest 0.33 h.p. motor was bolted to the countershaft upright instead of a separate, adjustable horizontal motor platform. With single-pulley drive on motor and countershaft, and using backgear, the spindle speeds were: 38, 55, 87, 125, 200, 285, 450 and 650 r.p.m. By paying extra the motor and countershaft could be fitted with 2-step pulleys when the speeds became: 38, 55, 75, 87, 110, 125, 175, 200, 250, 285, 400, 450, 570, 650, 900 and 1300 r.p.m. Unfortunately the makers neglected to mention the fact that to make the top speed useable a motor more powerful and expensive than the standard 1/3 h.p. was required. To adjust the motor-to-countershaft belt tension meant repositioning the motor itself - however, once this had been done it was not normally necessary to make any further changes until the belt began to wear. Despite the CSB being a standard, advertised specification, some examples have been found with the novel, quick-action belt-tensioning device used on the lathes of the late 1940s - probably another case of using up no-longer-needed spares. Other evidence of clearing storeroom shelves was the use of an early-pattern South Bend type saddle with its simple screw-in, rather than bolt-on, cross-feed screw assembly. Ambitious advertising in the model-engineering press of the day attempted to position the CSB as an alternative to the Myford ML7; unfortunately the Boxford cost nearly twice as much and, whilst it did offer a range of advantages, there can have been few takers. A "Training" version of the lathe, the CSBP, was also offered: shorn of screwcutting equipment and usually, but not always, backgear, this model was aimed at the school and college market and had little appeal for the model or experimental engineer.