TIDX 1648 GATC tank car


David, what's the spotting feature you noticed?
The diameter and length of the tank for its nominal capacity, and the tank saddle construction are characteristic of mid-20s AC&F practice. The lack of side sills makes it a 25 or 26. The photo in question is hard to make a definitive statement on, but 26 was by far the less rare variety.

David Thompson

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