Made in Spain (Oviedo). Impossible to give worth without knowing exact model and condition, and the serial number does not provide that to us. Could be $100-$350 or so.
More information needed. Provide a detailed description of ALL markings, their location, barrel length, type of sights, sling swivels if any, stacking swivel if any, cleaning rod if any, etc..
You will have to contact Mauser
Your Spanish made Mauser rifle could be worth anywhere from $50-$300. Value of any gun is based on exact make, model, condition, and originality.
Brazil used a number of Mauser rifles over the years. Most were in 7mm Mauser (7x57), but later versions were .30-06. That number you have is not a model number. sales@countrygunsmith.net
If it is a ww2 mauser, the maker & the date made will be stamped on the top of the breech. it will look something like this bnz 43 for a mauser made in 1943 by maker bnz The caliber is 7.92 mm or sometimes referred to as 8mm mauser model 98 means it was made in 1898 and it shoots a 7.9mm or 8mm round i have one with the serial number 4101 also known as Gew 98
The Mauser was originally 7 x 57, however some were re chambered to 7.62 x 51 Nato after the war. The commercial ammo is .308 Win.
You will need to contact Mauser.
100-400 USD
Robert Ball's book of the Mauser is a place to start
Mainly identified by features, not a stamped number.
There should be a stamped model number on the left side of your barrel. The serial number will be on the reciever; however, the model number is on the barrel.
Please rephrase and post the COMPLETE question. Mauser manufactured a number of firearms - pistols and rifles both - in a number of different calibres. If what you have is a Mauser rifle, you are free to send me an email (address is in my profile), and we can identify the model and which nation it was manufactured for - from there, we can determine the calibre.