I just obtained two real Henglester counters. An Eagle "Type 400" and a “Type 478”. I have put all three side by side with a Resin one and took pictures for comparison and a reference. The difference between the “400” and “478” version that I notice is that the “478” does not have the Eagle logo, the two digits on the end are the same black and white as the rest of the numbers. Also there is a screw on the top. Besides that they are basically the same. I know there are metal sleeves. T