First lets start with the fact that the Winchester model 12 did not have a Y prefix until the year 1972.The serial number that yo posted appears to have one to many 3,s on the end of your serial number.I am going tomassume that the serial number is 2,022,343,which falls in line with the recorded serial numbers of Winchester.If i am correct about your serial number,then your Winchester model 12 trap shotgun was made in the year 1975.
With the serial number that you supplied,your Winchester model 1892 rifle was produced by Winchester in the year 1924.
With the serial number that you provided,your Winchester model 1894 rifle was produced by Winchester in the year 1975.
With the serial number that you supplied,your Winchester model 1894 rifle was produced by Winchester in the year 1954.
with the serial number that you provided,your Winchester model 12 shotgun was produced in the year 1935.
With the serial number provided,your Winchester model 1894 was produced in the year 1908.
Serial number 888466 was produced by Winchester in the year 1921.
With the serial number that you supplied,your Winchester model 70 rifle was produced by Winchester in the year 1973.
With the serial number that you supplied,your Winchester model 1894 rifle was produced by Winchester in the year 1940.
With the serial number that you supplied,your Winchester model 70 rifle was produced by Winchester in the year 1984.
your Winchester model 1892 was produced in 1918.
With the serial number that you provided,your Winchester model 1894 rifle was produced in the year 1899.
With the serial number that you provided,your Winchester model 50 was produced in 1955.