In average circulated condition, Darlene, most of these old shillings are not worth very much. You have to get into uncirculated condition before high values kick in. Here are some typical values:

worn: $10 US dollar approximate catalog value
average circulated: $12
well preserved: $20
fully unicirculated: $80

There are also proof versions of these coins which had very small production rates, and those are worth hundreds of US dollars. A proof coin is usually identified by the packaging it comes in.

Now the coin in the picture has been cleaned. Do you see how there is definite wear on the devices? The high points of the images have been worn flat. Nevertheless the coin looks bright, evenly colored, and polished. This is a sure sign of cleaning. Coin collectors do not buy cleaned coins, so the value of the coin in the picture drops to its base silver value. There are 0.168 troy ounces of silver in these coins. Use kitoc.com to find the current value of silver.