K&E 4053-3 10" Polyphase Mannheim 1914-1915

Metal Cursor Blocks

Specimen #3

These scans are from the collection of Clark McCoy

The cursor blocks on this specimen are marked "PAT. APPL FOR" on the back and "KEUFFEL & ESSER CO NEW YORK" on the edge.

The production lot number for this rule is 548.

Front side

Back side of slide

Rear side

Bottom edge

Top edge

End view