Eric sent me one of his envelopes that celebrate classic film.
The stamps he used are gorgeous - they are printed using the intaglio technique, so have some raised lines, giving them a great tactile element that you can't appreciate in the scan.
The two stamps are from a set of 6 issued in 2014 celebrating photographic cameras.
Here's a link to a series of design photos showcasing the stamps at Behance.
For links to more favorite stamps, and maybe some for Easter, head over to Sunday Stamps.