Kurt, thank you for your feedback. My experience with lead fittings is that they may be just fine for many years and if the environment changes, the
'lead rot' may be triggered. I once restored an old model that had never been in a display case and the fittings looked just fine so I kept them
on the model. But after putting the restored model in a display case, about 3 months later, 'lead rot' began. So the fittings weren't a problem
for the first 50 or so years because the model was not confined to a display case. But once it was put in the display case, (from what I have read)
the lack of oxygen and the gasses put off by the wood of the case, triggered the 'lead rot'.
So I would like to avoid this by being able to somehow test the fittings to know in advance whether or not they are made of lead and may develop
'lead rot' in the future. Do you or anyone else know how to examine/test metal fittings to know if they are made of lead or not?
Thanks, Bill Mitchell