Trentham 23A Up Departure from Main on the left and 23BC Up Departure From Loop on the right. The box on the signal 23A post once held a half pilot key. The number 24 on the loop departure signal post refers to a low-speed light which has been removed.

This is an example of two signals having the same number and is also an example of a double unit signal controlling exit from a loop. See pp 126 - 128 in Semaphore To CTC by RW Heine.

The Up Departure From Loop signal has been cleared and is displaying Caution Medium Speed because the Wallaceville - Upper Hutt half-block is occupied.

Photograph taken on 4 March 20006 (not a race day).

23A Up Departure From Main.

The box once held a half-pilot key.

23BC. Up Departure From Loop.

24 was a low-speed light.