Red Moleskine notebook with skyline sticker

I lost my red Moleskine notebook, a pocket-sized hardcover, with a skyline sticker on the front and a blue ribbon bookmark peeking out; the spine has a little gold embossing. I last had it yesterday around 3pm, sitting on a bench near the National Archives Museum on Constitution Ave NW, just off 7th Street NW, before I ducked inside to grab a map. It holds my DC trip notes and a few sketches; it's very sentimental to me. If anyone found it, I’d really appreciate getting it back—drop it at Union Station Lost & Found or reply to this listing here.