Blue Book of Gun Values is a good place to start.
Owner's manual.
Start at your local library
What are the markings on the pistol?
BLue Book of Gun Values
I luger is a type of pistol used by the German army during WW1.
I can not find any information of a Daisy model 653. However Daisy did make a model 693 BB pistol. Is this the pistol you are referring to?
Blue book of gun values
Standard Catalog of Smith and Wesoon by Supica and Nahas
You will need to start by contacting Mauser
This site will explain how to strip your pistol. http://www.thehighroad.org/archive/index.php/t-129970.html
Made in Italy. 50-150 USD
You can find information on how to make a gun online on Youtube and also at Wikihow. You can learn to make a 22 pistol and also you can even learn how to make a machine gun.