Stephen,
Where are our remains located? That was a reproduction that was made in Boulder for #74 by Boulder Model RR Club member Sam Schreiner.
It may be useful for someone to look at them to see what improvements in material might be necessary for any future reproductions. A heavier gauge material probably would be in order.
Obviously, this one was made for display purposes, but we had thought it would hold up under at least some use with live steam. It did hold up well on 346, but that was only for a few days under steam, even though it was on the engine for about a year.
I can be reached backchannel, thanks.
Mike Trent