Based on the serial # , it was produced in 1978. The funder the numbers could be the proof mark.
The numbers called that are used in exponents can be called as a power of a number. The power or exponent can be positive , negative , zero .
Army special & officers model officers model special single action army & bisley revolvers police positive .38 bankers special police positive special & detective special
Look on the butt
Natural numbers are a special kind of Rational numbers. Rational numbers can be expressed as a fraction. (Positive) fractions with the same (nonzero) numerator and denominator are natural numbers, for example 9/9 = 1.
Police positive heavy frame: 1925 starts with Serial # 250000. Police positive special & Detective special: 1908 starts with Serial # 1 Police positive .32 & target: 1907 starts with Serial #495000 Police positive .38 & banker's special: 1905 starts with Serial # 1
Proofhouse.com has a list of serial numbers that can help you.
Does the serial number have a D before the numbers. If it does, it is made in 1966. The Colt Police Positive Special was made in large numbers, therefore reducing the value. I have seen prices from $200-400 depending on the condition. Mark Brown
In the same way that I have always used them! Positive numbers are used for measures that are greater than zero. They may be whole numbers - such as numbers of people, or words in a question. Or they may be fractional: your height or weight. Remember, though that one person's positive number may be another's negative. If you owe me money, it is a positive asset for me, but a negative one for you. In most cases, negative and positive numbers are used in the same way. There are a very few situations where there seem to be special rules that are applied to negative numbers. But, if you study these from the definition of negative numbers you will see that the rules are really the same, it is just that the numbers are different.
value depends on overall condition...............
The Colt police positive special serial numbers I have end in 1978 with 59999R so I would have to say a couple of years after that.
Colt Detective Special serial numbers do not end in two letters. If you are positive the last two are "RD", you need to call Colt.
In 1926 for the police positive .38 and 1919 for the police positive special.