Interarms rifle question

Question
I have a Interarms Mark X 7mm Rem Mag. I was wondering what this rifle would be worth. It has Alexandria Virginia and Manchester England engraved on the left and right side of Interarms Mark X. Then it has a number of "B 210507". I searched for information but couldn't find any so maybe you can help. Thanks

Answer
Interarms was a military & civillian arms importer and exporter. The ran afoul of BATF and forced out of the USA but are still in England.
The Mark X rifle is the Mauser design manufactured
in Yugoslavia.  There were 4 variations.
Used they are worth $300 to $150 depending on condition.  
These rifle are well made just not valuable.