I have several AU and MS Balboas of 1904 and 1905...right about when the Panama Canal resumed construction under American leadership...wish I could show them. If anyone likes to read of non-fiction history, a MUST is David McCulloughs "The Path Between the Seas"...the building of the Panama Canal. Has to be the greatest engineering accomplishment of all time, in world history, etc.
Several years ago I got at auction and a two coin lot the 1904 25c and the 1905 50c that I had slabbed by PCGS and they came up MS 65 (!!) and MS 62 (under graded?)....