should have company name and address as well as some patent dates on the top of the barrel rib. serial numbe on the bottom of the butt or under the grips. typical H&A in not very good condition made between about 1888 and 1899. value in this condition about $50. made for black powder cartridges.
Iver Johnson's Arms & Cycle Works 1871-1993
H&R Arms Company 1871-1986 (due spring 2010)
available from www.gunshowbooks.com