New old stock non-sealed CEV 171 headlight lens. Use these on many CEV buckets and others that take a PAR36 type bulb.
6v or 12v. Up to you. It can be used for dual beam application as well when used with a 1178 universal socket found in Autozone and other car parts stores.
This is the last of the last. Super rare.
Puch Numbers # 3188.8.131.528.0 or 3184.108.40.206.808.0