SoTransparencyType(3) on Linux
The text 09b25c484d15, as Debian 7 (Wheezy) shipped it.
The SoTransparencyType class is a node for setting the transparency type for shapes. In earlier versions of Coin/Open Inventor it was only possible to set the transparency mode globally for an entire scene graph, which could be inconvenient if different transparency types was wanted for different shapes.