I am pretty sure the Wards Westernfield Model 53 was made by Iver Johnson. Externally the Model 53 and Iver Johnson Hercules look identical. I believe the Iver Johnson Hercules was made from 1918 to 1936.
Savage/Stevens Model 5000 very much a model 311
Mossberg made the Wards model 550cd. In fact, they made all of the 500 series shotguns sold by Wards. lcj
We cant verify the SD108 model number, however: The "Hercules" was the trade name used by the Iver Johnson Arms and Cycle Works on shotguns made for the Montgomery Ward Co. Of Chicago. The "Hercules" made for Wards was a copy of the Iver Johnson "Champion" model which is a single shot shotgun with exposed hammer. They were made between 1909 and 1956.
Manufactured by Iver Johnson or J. Stevens for Montgomery Wards.
You will need the services of a good gunsmith to get a correct answer. The wards Westernfield was made by Savage and can be in both 12 & 16 gauge. lcj
What is the year a Hercules 12 gauge shot gun made
From what I'm told the Model 50 is the same as a Savage Model 311.
The guns Hercules guns made by Stevens and sold by Wards were made around 1910 to 1940
The Western Field SB30A is a version of the Savage Model 520 as made for Montgomery Wards. In typical used condition, about $150. sales@countrygunsmith.net
Your shotgun was made by savage/stevens for montgomery wards(westernfield).
Wards Hercules 410 was made by different manufacturers through out it's history. The early models from the 1920's had no model number just "PROOF TESTED 410 GAUGE" stamped on the left side and "SELECTED FORGED STEEL" stamped on the right side of the barrel. Model numbers were stamped on later guns. They usually don't fetch much $$