Thanks much Dan. Interestingly my flask has no writing on it, but after looking up the maker I find several references/images of my flask. Maybe another design w/o the makers mark? Dunno. One site says early to mid 1800s, another says late 18th/early 19th century. So perhaps it dates from a bit earlier than 1850-1870 as I allude? Anyway thanks again for the ID, and the ID of the musket plate - glad I decided to keep that as I didn't know what it was but thought it looked interesting!
John
Thanks Drew. Yeah, would've been nice to find the whole watch, but to find something directly linked to the homesite owner still made my day!
John