Piko G Scale 37251 DR III BR 94 Steam Loco, Sound Piko 37251 G Scale DR III BR 94 Steam Loco, Sound. Our company specializes in model trains, diorama products, miniature scenic accessories, model figures, model building kits, model planes, and model cars and trucks (including die-cast) across all major scales. Black Forest® Hobby Supply Co was established in 2008 as part of Interlaken Brands. We’re proud to serve customers in more than 130 countries worldwide.