Winsmith Gear Reducer Size E20 Model MDNS 20:1 Ratio 56C frame. This is from a now closed factory that kept spare parts on the shelf Input shaft hole 5/8" output shaft dia. 1".  

Ratio 20:1

Size E20
Model No. MDNS 

Serial No. E20MDNS41000DN

New no box this Gear reducer it is a new off the shelf from a closed factory that kept spares for their equipment the Gear reducer may have scratches and dust from being stored without a box. 

[Please Look at all the pictures they are part of the description]

                                                                                                 [B1-F1-R2-S5-2]