TOS FNK-25, FNK-25A and FNK25A/C Milling Machines. All of identical mechanical design and construction but the 25A and 25A/C having power and rapids to the cross feeds and a rapid feed vertical head and an electromagnetic spindle brake - though these features have also been found on some "standard" FNK-25. Titled by the makers as "Maintenance Instructions" this would be more accurately described as a "Comprehensive Supplementary Operator's Instruction Manual". Includes a large number of very clear sectional drawings.