The Diamond III's are selling from $900 to $1360

The higher the grade the better the wood and engraving/metal inlays

One can purchase a Street Sweeper shotgun from a class III weapons dealer. A tax of $200.00 must be paid when purchasing and you must have a weapons permit.

The MARK III is NOT A SHOTGUN it's a flare gun (signal pistol - 10 gauge)! Do NOT attempt to use this as a shotgun it would be EXTREMELY dangerous! The value of the pistol is greatly determined by condition in excellent condition (lots of blue) hey can bring 500-600.- otherwise they have little collectors value and fall in the 100-300 again depending on condition.

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.