[Konvas] zoom lens

[Speedbirdmgh at aol.com]

Anyone familiar with this lens? ebay# 
    390051538487   
Is it sharp? I want it? 
 
Nice lens but what is the small aperature half way down the barrel.   Is it 
a prism for a viewfinder?.
 
I assume the F stop/focusing markings etc have been rubbed off.
 
Just interested!
 
Rita
 






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