You can check at TractorData.com or link below
fbk-94458
A Farmall A with a serial between 281569 and 300125 was made in 1950. Source: http://www.geocities.com/mck357/serialnumbers.html
You have to compare the serial number to a chart that shows what year it was made.
Check at TractorData.com or link below
You should be able to get ahold of Farmall and they should have records. Although I am not for sure.
any number in series over 25000 is after 1945 and is also a Super A. you should search your year make and model at yesterday'stractor.com.
The last tractor branded as a Farmall was in 1975.
On the metal tag on the side of the bell housing.
1924 was the year of conception for the farmall tractor international harvester. their designs wouldnt change again untill 1955
The model H was introduced in 1939.
The Farmall M started being produced in 1939 and continued until 1952 producing 290,000 units. They sold for $1100.00 in 1940
Not exactly sure but on a B (it should be the same) it is on the right side of the left-hand seat mount.