Hallmark Keepsake Trains #21 ''773 Hudson Steam Locomotive by Lionel Holiday OrnamentThe Lionel 773 Hudson steam locomotive, the largest engine built during the post war era, will fascinate as a keepsake ornament on the tree. A Hallmark keepsake ornament is much more than an ornament it's a little work of art that tells a big story. From people and things you love, to memories of the past, to capturing today's important moments, a keepsake celebrates the story of you