I've had a look and can't find anything. Sorry to tell you that the part of BAe systems which used to be Avro has closed, after more than 100 years of existence - sore point where I live - so unlikely to get any help there. The Avro Heritage Centre might have had something (currently still hanging on at the BAe Woodford site), but having asked, they don't know of it.
The general address for the Mosquito Museum would be your best bet. If any one knows, they will. I say general address, as it is mostly volunteer staff, so any communications will eventually be passed to the relevant person.