What is the value of 1973 50p coin?

Are there US postal stamps with pictures of horses? What is the value of a 1990 100 coin? What does a easy knitter look like? What were the trading cards you got from potato chip packets in the 90s where the rare ones had a black patch you could rub and it would go invisible and see something underneath? What do you call someone that collects medals? When the ufc 149 comes to Calgary are the fighters going to have an autograph session? How much is a 1947 Brooklyn Dodgers team signed baseball? What a rock made out of? First Indian national leader appearing on a postage stamp? What is the difference between a treasury 1 note and a bank of England 1 note? Can snow globes freeze? What is the value of an 1863 Springfield rifle with an 1870 conversion in fair to good condition including the bayonet? How much is a 1966 elizabeth2 one shilling? How much are there in a 100 Dollar bill from Banco Central de Venezuela worth in the US? How tall is a bearbrick 1000? How much is a 1960 pfennig 2 worth? Where can one find cast iron antiques? How do you sell a 1955 Dodger Baseball? Do old Avon perfume cologne bottles have any value today? Will all Topps baseball card factory sealed boxes have the Topps stamps on the plastic wrap?