GECADO was a tradename of inexpensive handguns marketed by a firm in West Germany, mainly in the 1950s and 60s. The firearms were made by multiple other companies, typically in Eibar Spain. Values are typically in the $25-$75 range.
It depends on the handgun. Some are not good for much beyond arm's length. Of the pistols I have fired, the one with the longest range was a Smith & Wesson .38 revolver. Can't remember the model, but it was accurate to at least 200 yards, very good for a handgun. I have seen target pistols with adjustable sights which can certainly do better, but some of these are practical for nothing except target shooting. For an automatic handgun, 60 to 100 yards is probably the maximum practical range in the hands of someone who is skilled with it.
depends on the condition of your gun, I have seen them in a range from $ 149.00 to $ 400.00 take it to a gun dealer you trust to check it out.
Get a lawyer.
Wischo was the Trade Name of a German firearms dealer by the name of Wilsker & Co. They were located in Erlangen Germany. The .25 automatic your inquiring about was probably made by one of the many German handgun makers who were in business in the 60's & 70's. Impossible to determine without detailed information, but values on these are generally not very high, in the range of $50-$100, depending on condition.
Yes
Yes it is a automatic and some are stickshift
The effective range on this certain Glock is about 125 yards.
It should be marked as to caliber on the barrel.
They can range in value from 100 to a few thousand USD
No. Range Rover is English.
With familiarity and training, the effective range for a .45 handgun could be 75 yards, or greater for a man-sized target. Typically, pistol shooting ranges have targets set at 5, 7, 10, 14 and 25 yards.
It depends on the model, but most handguns are meant for short to medium range conflict.