How did Abraham linclon make copys of his letters?

Abraham Lincoln used a method known as "copying press" to make copies of his letters. This device involved placing a sheet of damp paper over an inked letter and pressing it down with a lever, transferring the ink to the new sheet. Additionally, Lincoln often employed a pen and ink to write letters, and he would retain a copy for his records, either by writing them out again or using the copying press. This allowed him to maintain a record of his correspondence efficiently.