Seems all our original posters have left the house?
Not quite ...
I think responses just take longer with older mowers.
In terms of dating your machine, there are clues -
the most important is the
'Diaphramatic' snorkel, introduced in late 1958
for the
1959 model year.
I do not think the muffler is original on your machine.
Hope this helps.----------------------------------
Jack
