I don't think Framus made a model 5759, it is more likely that the model is 5/59 or you are misreading some of the digits. Those old labels do get tough to read.
If it is a 5/59 it would be an archtop acoustic known as the Sorella. However, you say your guitar is an Electro Acoustic so it has either had a pickup added after manufacture or it isn't a Sorella.
Here is a picture of a Sorella to compare to your guitar:

As for dating, you should be able to look through the f hole of the guitar and see a number with 2 digits and a letter following the serial number. The first two numbers are the production date and the letter is the production month (A = January and so on). So 63C would be a guitar produced in March of 1963.Statistics: Posted by VintAxe — Sat Oct 10, 2009 12:05 pm
]]>