Contacting the manufacturer is a step in the right direction.
Model 1911 commercial .45 with serial number 287589C was made in 1960. It was not a government issue.
Colt will provide a historical letter for a fee.
That Colt model 1911 was a commercial model, not a government model and based on the serial number, it was made in 1947.
There is no such thing as a "model 702337". The number you list appears to be a serial number. The Model number will be stamped on the barrel, or on the upper tang behind the hammer.
You can get a historical letter from S&W for 50 USD.
You will need to include the model number of your Winchester to get a answer.
government model 70 45 cal
You can type all the information about the government you can make a model showing the three parts of government or a timeline of all the things that happened throughout government history.
other nations have used the U.S. government as a model
Date of manufacture was 1923
With the serial number that you have provided,your Remington Rand model 1911 was made in the year 1943.
Your winchester model 1890 .22cal rifle was made by winchester in 1902.