Actually, that is nickelplating, not chrome. These were commonly made by Colt, Smith & Wesson, Harrington & Richardson, Iver Johnson- and just about any company that made a .32 revolver. There have probably been more than 100 makers of these revolvers.
At one time they were made by several companies, including Iver Johnson and Harrington & Richardson. S&W still produces a .22 revolver, but it is 6 shot. Sorry-
Unfortunately the Iver Johnson revolvers have not developed much collector interest. There are a few out there, but not enough to drive prices up. An EXTREMELY nice example of the .32 double-action models would bring less than $150, generally. sales@countrygunsmith.net
Nothing.
Chipmunk
in the early 1900's many small machine shops turned out small break open revolvers in different calibers. Also, larger machine shops also made the break open revolvers and put the name of the firearm dealer on the weapon......so, many different dealers sold their revolvers under their brand name even though the revolvers were made in mass by large machine shops............................
Your best bet is to contact H&R.
Try Jim Spacek's book.
early 1900's
Sorry, but you have a bit of a contradiction in terms. Western style revolvers are single action, not double.
Possibly Herbert Schmidt
40 USD or so
Standard Catalog of Smith and Wesson, 3rd ed., by Supica and Nahas