This is a circa 1970s Montblanc mechanical pencil . It has the push top cap with the white star on it. The gold band around the middle has "Montblanc" and "Germany" written on it.
Received it as a gift in the 1970s in a set with a fountain pen. The fountain pen is long gone but I still have the Montblanc box the set came in. I will send the box along with the pencil.