Invalid Data Value Leaves/Unobtainable values

From versions in-20100131 to 14w05b, the historical appearances of leaves with damage 16 and above can be treated identically to those of damage 0 to 15, as the only visual difference is the durability bar in versions prior to Beta 1.4. There is currently no known way to obtain any of these in Survival mode; commands or inventory editors must be used.
Currently, the only tested items have damage values from 0 to 383. The behaviour of values from 384 to 2147483647 is yet to be documented; from versions up to 14w08a as well as versions 14w25a and later they appear to be predictable.