Every toolmaker's box tells you who he is before he says a word.

This is the top of mine, an oak Gerstner. The center punch hammer in the lid is stamped FRITZ. That was my father, the general manager at Kerner Tool and Die here in Erie. Behind it hangs a Cincinnati milling speed calculator, the wheel a man turned to find his cutter speed before there was a screen to ask. On the right is the trig chart I have looked at more times than I can count. Down in the tray, many of the blocks and fixtures are stamped KERNER, because a toolmaker marks what's his, and I made some of them myself. The mirror sits in the lid where it belongs in a box like this. Look close, and you can see the shop in it.

520 pieces of orange, blue, steel, and green felt. About 16 by 20 inches when it's finished. It's harder than it looks.

Each puzzle is printed one at a time when you order, so give it about a week to reach you.

• Pressed paper chipboard with adhesive, 0.06″ (1.53 mm) thick
• 252 pcs puzzle size: 10.62″ × 13.62″ (27 × 34.6 cm)
• 520 pcs puzzle size: 15.74″ × 19.74″ (40 × 50.1 cm)
• Digitally printed
• Semi-gloss finish
• Vibrant colors
• Can be used as wall decor
• Blank product components sourced from the US

Warning: Choking hazard—small parts. Not for children under 3 years.

Important: This product is available in the US only. If your shipping address is outside this region, please choose a different product.