The Greener Mk III Police Gun was a single shot Martini action shotgun, made in a unique guage- a tapered 14 g, with grooves in the head of the shotshell for pins in the action to fit into. These are somewhat scarce, and have frequently been rebarreled to 12 g. Value will depend on condition and originality, but seem to average $400-$500. There is also a Greener GRADE 3, side by side shotgun, and value of these is MUCH higher. As with ANY gun, value is driven by condition and originality.
How much does 5 mark-1937 cost
They cost what you pay for them.
1000000
$50-5000
apporx $700
1,000,000$
Around the 500nzd mark
the same price as a shotgun shell
259.00, that's it/
100 USD
How much a used Browning modle 870 shotgun costs can vary. The condition of the shotgun is one factor that impacts the cost. One can expect to pay close to $600 for one in good condition.
As of right now you are looking at 31,625 GBP ($52,000 USD) for an entry level shotgun.