The United States Postal Service will be issuing a postal stamp commemorating philosopher Henry David Thoreau. The stamp was designed by Greg Breeding and features a portrait of Thoreau by Sam Weber based on an 1856 daguerreotype by Benjamin Maxham. It looks like this:
The stamp is being produced on the occasion of the bicentennial of Thoreau’s birth year. There will be a ceremony to celebrate its release on May 23rd, 2017, at the Walden Pond State Reservation Visitors Center. Further details here.
There are plenty elsewhere around the world, for example: