K&E 4041 10" Mannheim 1922

All Glass Cursor with Celluloid End Blocks

These scans are from the collection of Bob Wolfson

This rule is unusual in that it has an early serial number and also production numbers on the end of the frame. This rule probably dates to 1922 when serial numbers were first being implemented.

Front side

Back side of slide

Rear side

Top edge

End of frame