Bachmann Branchline OO Gauge 32-135B BR 5532 ex-GWR 4575 Class 2-6-2T Small Prairie BR Lined Green Late Crest Bachmann have produced models of both the early flat top and later slope top 45xx class engines, many of which remained in service until the end of steam on the Western region. Era 3 - DCC Ready. 8 pin decoder required for DCC operation.