Acunn1,
You have an H&R 3rd Model AUTOMATIC EJECTING 3rd Variation made between 1913 and 1915 (this from the spelling of the state as 'MASS.'). It was made to handle smokeless/Nitro powder .32 S&W or .32 S&W long cartridges. That serial number would put it late in the series - so probably 1915 is the year of production.
A picture or a more complete description of the finish, barrel length, condition of finish and grip panels would help provide a bit more info, as well as an estimated RETAIL value.