I may end up buying one of the books from the author, but I don't think I'd be as eager to pay for the other: a limited edition*, two-volume set from 1909. That would cost a pretty penny...which leads to my selection from the 2008 edition of The Official Red Book: A Guide Book of United States Coins. (Nice segue, eh?) Page 161 is mostly tables showing values of 1853 quarters, but there is this text:
"The reduction in weight is indicated by the arrows at the date."
Fascinating, I'm sure.
* This is the second published work I've found with relevant info for certain Maryland Eastern Shore folks, and both books were printed in very low numbers; the 1909 set was initially limited to 50 copies. I haven't looked for reprints yet, but it may just be a matter of time before this genealogy is digitized.