Yes, i own a model 28 chp
No sn = no way to answer. 50-500 uSD
IF IN CLEAN CONDITION, ABOUT $500
1975 or so
100-400 USD or so
@ 1976
your model 28 highway patrolman is going for 250-400 dollars depending on condition.
1978
50-500 usd
The best that I can do is say that the smith and wesson model 28-2 was made by smith and wesson from 1961-1969.
With the serial number that you have provided,your Smith and Wesson model 28-2 Highway Patrolman was made in the year 1973.
1975-1977
50-460 usd