Piko G Scale 37240 DR IV BR 50 Reko Steam Loco Piko 37240 G Scale DR IV BR 50 Reko Steam Loco. 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.