Replacement Winder, casement window

A home owner from Sydney, Australia says:
A 20 year old window winder in my home (in Australia) on either Stegbar or Trend Casement windows has broken.

The winder has broken away and I presume needs replacing and I would like to match with the rest of the windows if at all possible. Can you advise the best way to rectify the problem?

The plastic housing,(photo 1) is branded
User submitted photos of a window operator.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting! Check out our 39-031 and 39-032 and see if these can work for you.
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