3rd Generation Values

[Virginia John]

Where can I find values for 3rd generation S&Ws? I have a couple of police trade-ins that I would like to find the values of. The first is a 9mm 5904 with usual holster wear but in excellent operating condition with adjustable rear sight and the other is a .40 S&W 4046 that is in like new condition, no visible signs of wear.

Thanks,

VJ