A long, long time ago, banks (remember those?) used to issue these. You could get plain blue ones for free, sometimes, but you could also order them with different backgrounds, like this bald eagle. You used to write on them with a pen (remember those too?), put them in an envelope with a stamp (still with me?) on it, and when the person/company received this, he/she would take it to a different bank where, two or three days later, money would magically appear. Then, as if that weren’t interesting enough, you’d get your original one of these back with that deposit information on the back of it. If you remember all of that, or even most of it, check your age, you are old.