What story does a number tell?

[motogman]

How much can an engine number tell about a bike and it's original build?

Is the VP of any significance?

Is there a good resource that breaks the numbers down by production year etc?

[Hahnda]

Your number looks to be Eldorado.

http://www.thisoldtractor.com/moto_guzzi_loopframe_loop_list.php

[fotoguzzi]

46=Rossi

[rodekyll]

When they tell me to take a number I say "Ok, I'll take number 1.  That means it's my turn."   

[wrbix]

42- the answer to life, the universe, and everything

[rocker59]

How much can an engine number tell about a bike and it's original build?

Is the VP of any significance?

Is there a good resource that breaks the numbers down by production year etc?

The two letter prefix denotes the engine type/model.  On later model bikes with the standard 17-digit VIN, the two letters are also in the VIN.

[motogman]

42- the answer to life, the universe, and everything

       Here's one to Douglas Adams....