I recently had the opportunity to work with Mark Fimoff of SABR and fellow Net 54 member Bruce Garland on an article for SABR's June newsletter authenticating circa 1874 tin types of Joe Battin and Tim Murnane. Link to the newsletter is below - would appreciate your feedback.
https://sabr.box.com/shared/static/b...yf3zthlf9m.pdf
Leon - not sure if this belongs on the main page or in the Memorabilia section but please move if it's more appropriate to put there.