Woodlander;
It is a .32 Double Action 4th Model between 1883 & 1898 in the serial range 43406 & 209301. Assuming a fairly constant rate of manufacture, that places your gun around 1897.
Things to know:
Caliber is .32 S&W, not .32 S&W Long.
It is an antique under Federal law and not subject to the same restrictions for interstate sales as modern firearms.
If the hammer is down the firing pin will be resting on the primer of the cartridge. Don't do this, leave the chamber under the hammer empty. Otherwise if dropped it could fire.
The gun is designed for black powder cartridges, it is not made of modern steel. Modern ammo is manufactured to the same pressure levels as the old black powder rounds, but has a much faster burn rate and hence a rapid pressure spike. Shooting modern ammo will result in in rapid wear.
It appears to be unfired, so value may be in the $450 to $600 range. I suggest you check recent online auction results to get a better feel for this. The case is probably aftermarket, but if period correct will also add value.