Merlin Help

Hi Guys

We have 2 x Merlin 25s (Right Handed) on display in our museum here at HARS Albion Park, Wollongong, Australia.

We have no known history on them.

Their Serial numbers are:

#104605 and #106607

We think they were in a locally made Mosquito or Mosquitos, but any help on their manufacture dates or operational use would be appreciated