100-340 or so
try J C Higgens
About the same. The 1903 Springfield used a licensed version of the Mauser action used on the German Model 1898 Mauser.
50-100 USD
The Model 1903A3 rifle is base upon the Mauser 98 action but they are not exactly the same.
100-1000 USD or so
What Model are you asking about?
There is no such thing as a Mauser 1819. Model numbers then were based on the year they were introduced, and the first bolt action rifle wasn't introduced until 1824. Additionally, Paul Mauser - who founded the company - wasn't even born until 1838.
Mauser k98 value $475
100-1000 USD depending on specifics
The model J C Higgins model 50 was built by High Standard using the FN Mauser action made in Belgium. It was available in 2 calibers, the .30-06 and .270. The J C Higgins model 51 was the same rifle except it had a stock that had a cheek piece and checkering. All of the model 50 & 51 rifles that I have and have had, shot very well.
The JC Higgens, model 103.229 bolt action .22 dates back to the mid to late 1950s making it close to 50 to 60 years old.
Not every single mauser bolt is interchangable, but most bolts for a single model will be. For example, most bolts from the millions of WWII era kar-98k's are interchangable but will not be interchangable will a modern mauser hunting rifle or a modern rifle based off of the mauser action.