A Mercury model 110, 9.8 hp outboard, serial number 1471875, would be a 1963 year model.
1970.
A 9.8hp Mercury outboard, serial number 2143520 would be a 1967 year model.
Mercury is over 14,000 years old bce.
There is a serial no 5965263 for a 1982 Mercury 9.8 There is a serial no 5965263 for a 1982 Mercury 9.8
Your mercury 110 engine falls within the engine number range 3795658 to 4691221. So your number is 4305943 and is roughly half way, so I would guess it is 1975 as the range is 1974 to 1976.
How old is my Kiekhaefer Mercury 7.5 boat motor Serial number 3374590
1995
as old as the ENIAC
1974
1989 mercury black max
1966.