Advice on my MB please

[darstadlydarcey]

Have an MB fountain pen which I have owned for some 20years (but which is a bit older). Used it at work for the odd signature but now I'm retired I just use an MB ballpoint all of the time.

Just interested in researching the model almost certainly to keep but might sell.

Is yellow gold, has "Germany" and serial MY xxx353 (not sure if serial should be hidden with pens to avoid scammers) on top gold rim and MM Meister etc on bottom rim.

Takes either a filler or cartridge.

Any advice re history and value appreciated.

Thanks