These were often used in. print shops to create a blank area in a lock-up.

Take a look at photo 2 to see the interlocking ends better.

Some layers typically hold pieces from 8 to 64 picas in the taller one. What you see is what we have. In this case, most have 3 interlocking positions (each representing 1 pica), so you can adjust them to 3 positions in both directions.

The smaller one has 2 interlocking positions.

Cases are original.

This likely requires a pick-up as it is pretty heavy.

All sold together.