In Bob Sloan's new book, "A Century + Ten of D&RGW Narrow Gauge Freight Cars" there is some mention of the Class 14 cars of 1902 #1400 to 1499. About a page of descriptive text (pages 123-24) and a redrawn folio drawing F-174 (page 144).
If you would be interested in Bob's new book, we do offer it for $30.00 postpaid by priority mail.
1-800-756-1848
Bob