Register here: http://bit.ly/pmmpostcards When was the last time you sent someone a postcard? Take a step back in time as Penobscot Marine Museum Photo Archivist Kevin Johnson explores an early form of social media -- the picture postcard. Kevin will share several postcards from the museum's collections to satisfy your nostalgia. He will also discuss the way in which they were captured and created. Thank you to our Tourmaline Event Partner Harvard Pilgrim Health Care