One Sealed Beam #4005
These units were manufactured by Tungsol and feature the TS logo at the bottom.
The #4005 is a #4002 except the #4005 has a heavy duty filament with a ceramic filament support.
This is a 12 Volt bulb with a 3 terminal (push-contacts) base. Please review the images for details.
For additional specifications, please review the item specifics.