Hi CM and Norm
I haven't kept many records after 1991 but I know the PDD model is from 1990s to early 2000 ,
parts list here
CLICK HERE then get the PDF from the one at the top of the page.
pre 1991 model list here if any one doesn't have a copy
https://www.outdoorking-forum.com.au/pages/Victa/Models/Models_1970_1991.pdfThe exact year of manufacture may be taken from the stamped numbers on the side of the alloy head or remove the carby
and the year may be cast onto the cast iron crank housing.
Cheers
Max.