LKlive13:
Your Model 30-1 .32 Hand Ejector was manufactured between 1961 & 1970, serial range over those years was 712954 to 826977. The -1 designates a change from the .32 sized Improved I frame to the .38 sized J frame. Unfortunately the Standard Catalog of S&W does not give a year by year serial number breakdown for that model. You can refine it further based on features.
If the cylinder latch is flat, the 1961-1966. If the cylinder latch is concave then 1966-1970.
If the grips are original and there is an uncheckered diamond around the grip screws, then 1968 or earlier. If the checkering goes up to the screws, then 1968 or later.
I am Australian and don't have much knowledge of the current US prices. In 2006 The Standard Catalog of S&W gave a value of $185 in fair condition, $225 in very good condition, $275 in excellent condition and $375 for as new in box. I doubt these prices have changed much, the round is unpopular/expensive for self defense and there is no rarity to cause a price spike due to collecting.
NapalmMan67:
Your Model 10-5 .38 Military & Police tapered barrel was manufactured in 1973 or 1974. Serial range for those years was D510001 to D659901, so 1973 seems probable.
Your other gun is an enigma. If it is the same frame size as the Model 10-5, a six inch barrel & has a K prefix to the serial number then it is a K22 Masterpiece manufactured in 1949, a pre-model 17. If as above but a 4 inch barrel then it is a K22 Combat Masterpiece from 1949, the Pre-Model 18.
If the serial number is is 806xx, the frame is slightly smaller than the Model 10 and the gun has adjustable sights, then its a .22/34 Kit Gun, the Model 34-1, manufactured between 1960 & 1968. Follow the info given above to LKLive13 to refine the period of manufacture down.