Hi Chris, I'd guess it's somewhere in the vicinity of Westfield in Oct 1946. If you check Shoreliner Vol 31, Issue 1, pgs 8 & 9, you'll see 958 supporting an excursion. There does appear to be a steam engine on the other end of the train in your photo.
Thanks very much for weighing in Mike! I'm getting a slight sense of deja vu.... I didn't think I'd posted this photo before (which is why I posted it this week), but your observations sound very familiar to me now that I'm reading them (perhaps again - from a parallel life %^)