If you are interested in doing some field measurements there are two simular 8-18.5C meter gauge engines preserved in Brazil. One even has sexy flutted domes.
https://www.facebook.com/photo.php?fbid=10204166546876426&set=p.10204166546876426&type=1&theaterBaldwin 8-18.5C is Paulista #821 SN12116 DSC01062Vol17pg94RioClaroSaoPauloRd16-17_1891_8-18.5C
And one [
www.facebook.com] The Baldwin #58 above is from March 1891 with SN11824, I'll find and post the Order Spec from Baldwin. It is on display at a Museum in Sorocaba.
Thor Windbergs
Ludwigsburg, Germany
Facebook: Thor Windbergs
Volunteer G&L RR 86-88
Fireman/Engine Watchman D&S 90-94
Member Frankfurter Feldbahn Musuem, feldbahn-ffm.de
Member IFPPC (Society for Preservation of Perus Pirapora Railroad) Brazil www.internationalsteam.co.uk/trains/brazil54.htm
Member German Standard gauge Group www.eisenbahnfreunde-zollernbahn.de