Carl Weber provided this image of B&M class S-1b 2-10-2 No. 3023 which an unknown photographer snapped at Rigby Yard near Portland, Maine on September 29, 1941. The engine appears freshly shopped and repainted. The S-1b class came from Alco's Schenectady works in 1923 with specifications similar to those of the S-1a class described for No. 3015, but weighing less at 372,100 pounds. The small inboard-journal trailing wheel seems inappropriate for the beefy look of the rest of the engine. This view brings out the "reverse" or "indirect" configuration of the Walschaerts valve gear that was applied to these 2-10-2s.