Herters was an importer headquartered infrom the early 1960's to 1979. I don't know of any way to find the actual manufacturer, but it is probably a close copy of some Smith & Wesson model, so a gunsmith could look through his spare parts bin and maybe come out with a pair that would (or he could modify to) fit.
J.P. Sauer was making some handguns for Herter back in the 60s. I have Herter 44Mag SA made by Sauer.
Herter's sold various maker's products with their name on them.
It is my understanding that Herters only made rifles in the mid to late 60s and were sold mainly via mail order direct from them with a few stores selling as well. The Gun Control Act of 1968 pretty much marked the end of Herters rifles.
Do a Google search on Herter's Parts. You'll get hits.
Depending on condition, $150-$200.
You need the services of a good gunsmith or machinist
Herter's was an importer, not a manufacturer. No published sn data on what they imported.
$200-$300. depending on condition.
It was manufatured by Fuji Arms in Japan
Herters was the importer, not the maker- and has been out of business since the 1970s. I believe those rifles were made in Yugoslavia, and used a Yugo Mauser action. A gunsmith MAY be able to fit a commercial Mauser stock to your rifle, but I know of no ready source of parts for these. Sorry-
Depends entirely on who made it. Herter's did not make firearms other companies like Whitworth, BSA, etc. made them and branded them for Herter's
Herter's imported revolvers made by Sauer & Sohn in West Germany. Try http://www.e-gunparts.com for parts.
From what I have found on other Internet forums, it's about the same as Reloader 7 or a bit slower than 4198.
Impossible to answer without a detailed description of ALL markings. Hereter's had various makers make the weapons they "branded" with their name.
Chances are it's a 62" bow, made in November of 1967 and was the 13th of that model that year.
Try e-gunparts.com, gun shows, gun shops, custom stock makers.
Herters was an importer headquartered in Minnesota from the early 1960's to 1979. The guns they imported were of good quality but strictly valued as shooters. I'd suggest you check one of the chain sporting goods stores like Dicks or Garts or Gander Mountain for the cheapest NEW .22 revolver and figure yours is worth about 2/3 as much if it is like new, 1/2 if worn but functional or nothing if it's rusted and broken.
Herter's was an importer. The weapon was made in Germany. No sn data published. 100-300 value.