Firstly, value depends on a number of things; a) General condition of the revolver, b) Where you are in the world, local rarity can increase values as can local gun control laws (conversely decrease the value) In Australia, Webley Mk VI average from 450 AUD for an average condition through to 1200AUD for an excellent example. Bear in mind that a .455 Webley is strictly regulated in Australia and is limited to collectors and others who can obtain a restricted hand gun license in Australia, an average sports shooter cannot. Thus values can fluctuate, average cost would be around 500 AUD.
The value of the Webley Mark 2 revolver with a serial number of 43383 varies with the condition of the pistol. This gun sells for about 450 dollars to about 1000 dollars depending on the condition.
100-1000 USD or so depending on EXACTLY what you have.
If the gun is complete and functional, $300.00 to $800.00 depending on the condition.
50-200 USD
Webley Mark 1 pistol (original. There are several variations) 1924-31. Webley Mark 1 New model 1935-64 Webley Mark 1 Rifle 1926-29
According to the "Blue Book of Gun Values", a Webley mark IV .38 in 100% condition is worth $450, in 95% condition, $350. It was made and issued to the British military during WWII, and is still used today by police in some countries.
A detailed description of all markings, condition, finish, barrel length, caliber, box, accessories, etc., is need to answer the question.
More information would be helpful -ie, revolver, automatic or flare pistol, and what bore ?
Try the Blue book of gun values for a general ball park figure
A Colt .357 Mark III nickel plated revolver is worth between $500 and $750. The actual value varies greatly based on the gun's overall condition.
Without more information about the condition of the pistol, it is not possible to give you an estimate of value.
The Mark IV was not made in .32 caliber. It was in caliber .38-200 (the 38 S&W). Value is $200 and up, depending on condition. A SIMILAR revolver is made by IOF in India in caliber .32 S&W Long, and sells new (in India) for about $1,300 USD (no competing companies).