From what I can tell, these massive 48'11 reefers normally grace the rails between Adelaide and Darwin, however two turned up on a MB4 service the other day bound for Brissy.Not sure if they have returned or may see some use in FNQ on the narrow gauge?  Anyway, these two are TGLA 480026 and 480030.  They appear to be the same as the newer Linfox FTLD 48'11 reefers.  Enjoy!