50-500 USD or so
This can vary greatly on the manufacture date, which you can tell from the serial number. If it was made between 1954 and 1957 it could go from $225-850, and if it was made 1957-1986 it could go for $225-495. This all depends on the condition of the handgun.
IF IN CLEAN CONDITION, ABOUT $500
50-500 USD or so
100-400 USD or so
100-400 USD depending on condition, box, accessories, papers.
50-500 usd
50-460 usd
0-600 usd
20-1000 USD depending on specifics.
100-800 USD; can't date without a serial number.
your model 28 highway patrolman is going for 250-400 dollars depending on condition.