Parklands should be able to help with some information but here is some more regarding the mower:
1. Engine is an Oleo-mac 40cc The online store still has some blades in stock for that model as well but not listed on the site. 2. It was bought in under the EFCO brand (which is basically an Oleo-mac)
The mower is no longer bought into Australia.
Wow, many thanks for that engine info! It will provide me with prompting material if the Parklands personnel need some memory jogging.