You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "The Astra Model 900 is a Spanish copy of a German semi-automatic pistol that was produced through which years?" whose answer is 1896 to 1937.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Astra Model 900 production years
Useful Output:

Doc 1:  Astra Model 900 - Wikipedia). These were made in 7.63 and 9mm Largo. The original version of the broomhandle was made in 1896 up until the
Doc 2: Astra produced the following models: Astra Modelo 900. Production: 21,000 units. Years of production: 1927-1941.
Doc 3: The Astra model 900 semi-automatic pistol was introduced in 1927 by the Spanish company Astra – Unceta y Cia. Designed to compete with the highly successful
Doc 4: Japanese Military Cartridge Handguns 1893 - 1945 by Derby & Brown, on page 280, states "Another "Mauser type" pistol is known with interesting -
Doc 5: There is a C stamp on the right side of the frame which I believe indicates a 1929 production. This one seems to have totally genuine patina