Depends on how much you can supervise the child in question, if you believe your child would be safe using it with your supervision then any time, but usually, there would be an age restriction on the packet, usually no younger than a year.
If the stamp has not been devalued by the country of issue, yes, for postage in that country. It is only going to be worth face value which could be a fraction of its actual value in a few cases.
This is a very difficult question to answer. There are over 70 Federal Duck stamps and each stamp has its own designer (artist). There are also state duck stamps for the 50 states averaging about 25 stamps per state making somewhere in the neighbor hood of 1250 stamps. You need to be more specific as to which stamp.
Paul B. Johnson
6-9 months old
You buy the rubber duck, (which is sometimes available in the catalog, or you can unlock it through a code.) Then you go to the cove where nothing else but the duck is there. Go in the water area and swim.
The duck would be less than a day old.
The cast of Old MacDonald Duck - 1941 includes: Clarence Nash as Donald Duck
duck or you can use the alternative (doukke)
The three cent.
Richard "Duck" Baker is 67 years old (birthdate: July 30, 1949).
yes it does, The egg The duckling The Old duck
Yes, they use these at the post office when the prices go up and you still have old stamps!