You can check at TractorData.com or link below
The Farmall M with serial number 123030 was manufactured in 1952. The Farmall M series was produced from 1939 to 1954, and the specific serial number indicates its production year within that range.
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
Farmall serial number 126516 corresponds to a Farmall H tractor, which was produced by International Harvester. The Farmall H was part of the Farmall line and was manufactured primarily between 1939 and 1953. This model is known for its versatility and was widely used on farms for various tasks.
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.