for about 30 minutes on friday afternoons at school, we gave our teacher money for stamps. she kept our stamp "book" and we got to put stamps in the book - i usually bought ten cent stamps. when we had about $18 and change in stamps, we could go to the post office and trade the book in for a $25 savings bond.

"Every Scout to Save a Soldier" was a slogan used to motivate Boy Scouts and Girl Scouts to help sell US Savings stamps. (think mini war bonds)

yes, daylight savings were in effect in world war 1

present them to any United States bank. They will forward them to a Federal Reserve Bank which will send them on the United States Treasury, which will in time credit your bank account.

They have no premium value, just their indicated face value.