Attached is pics of my first Mauser. The serial number is 770n. From what I have read the last serial number was 505n. Or am I not reading the known range correctly. The stock is only marked 770 but there is H markings in the stock. Is this normal or has the stock been faked. Everything seems to match except the bolt. All parts of the bolt are marked 8537 and there seems to be a flying eagle mark. Waffen marks also look correct WaA623. I am a complete novice when it comes to Mausers so I am looking for validation of my research. Any help would be appreciated especially with the serial number range.
Link to images
Link to images