But the M28-3 was introduced in 1982, so that would be the upper limit.
"N43239"
My book says '70 - '72 for serial numbers N1 to N60000
N1 to N60000 is correct for the years 1970-1972. However, keep in mind different N frame models had different blocks of serial numbers assigned to them. So you cannot extrapolate those 60,000 numbers and conclude that your revolver was built near the end, say some particular month in 1972. If N43000 fell into a block reserved for the Model 28-2 (which obviously it did) and a run of Model 28-2 revolvers was assembled in, say, February of 1971, yours might well have been made at that time. A lower block of numbers (N10000 to N20000 for example) might have been reserved for the Model 29-2 but not assembled until November of 1971, well
after your Highway Patrolman with a higher number was assembled.
All these examples are hypothetical. I'm just trying to illustrate the difficulty of guessing at when this gun was assembled by simply looking at its serial number and comparing it with a range like N1 to N60000. When you add to this that
shipping order is completely different than assembly order, you really cannot make rational guesses as to when a particular revolver might have been shipped, based on the serial number lists in the Standard Catalog. This is particularly true with the N prefix numbers.
Here is the summation: Your revolver was
assembled sometime in the 1970-1972 period. It would have shipped sometime after it was assembled (anywhere from sometime in 1970 up to sometime in 1973, probably not later than that). If you want any more exactitude, you will have to get a letter, which will tell you exactly when it left the factory.
Whew! That was a lot of typing.
