These buses were on standby for the recent rail work on the Blue Mountains Line & were waiting at Lithgow Station.
(https://www.actbus.net/forum/proxy.php?request=http%3A%2F%2Fi611.photobucket.com%2Falbums%2Ftt193%2FBus400%2FNSW%2520Private%2FBUS6283LithgowStation3.jpg&hash=ad85e7c05c93b30c093102545097f351f4baa162)
(https://www.actbus.net/forum/proxy.php?request=http%3A%2F%2Fi611.photobucket.com%2Falbums%2Ftt193%2FBus400%2FNSW%2520Private%2FBUS6283LithgowStation2.jpg&hash=564ff1f6db46b631ec0956e2a147e6545db2019a)
Bus 6283 is a Mercedes-Benz OH1830LE
(https://www.actbus.net/forum/proxy.php?request=http%3A%2F%2Fi611.photobucket.com%2Falbums%2Ftt193%2FBus400%2FNSW%2520Private%2FBUS1695LithgowStation.jpg&hash=9031113fde628faef892c545da13aa106bd45187)
Bus 1695
(https://www.actbus.net/forum/proxy.php?request=http%3A%2F%2Fi611.photobucket.com%2Falbums%2Ftt193%2FBus400%2FNSW%2520Private%2FBUS2192LithgowStation.jpg&hash=70c2b5c95eb4c8263de3aa54085845c25a7be591)
(https://www.actbus.net/forum/proxy.php?request=http%3A%2F%2Fi611.photobucket.com%2Falbums%2Ftt193%2FBus400%2FNSW%2520Private%2FBUS2192LithgowStation2.jpg&hash=d169ff3b22a8df458520fd46b59cc1d0810dc181)
Bus 2192
Buses 2192 & 1695 are Mercedes-Benz OH1830L
That first photo is quite nice