Hi Russell,

Not online, but if you can find a copy of the Santa Fe rolling stock
reference series, "Volume Four Santa Fe Box Cars 1869 - 1953," by John
Dobyne, you'll find it has good photo coverage of the Bx3 and Bx6 classes.
This book is out of print at its publisher, that Santa Fe Ry. Historical &
Modeling Society (atsfrr.net), but copies are sometimes available in hobby
stores and from book dealers.

Good luck,

Andy

Andy Sperandeo
Executive Editor
Model Railroader magazine
asperandeo@...
262-796-8776, ext. 461
FAX 262-796-1142