First step, take the popular P-3 style that everyone loves and make a mold out of it. Next, cast the mold with molten iron and let it sit. Finally, take out the cast and flatten it to get that cross-era feel. Now of course it's not that extreme, but here's the new P-3 style. Made with metal frame, metal hinges, and UV400 lenses.

Measurements

• Lens Width: 49mm
• Nose Bridge: 25mm
• Lens Height: 49mm
• Frame Width: 145mm