Delta Light surprise inside–original diagram

[jchicago]

I'm starting work on my third Elgin.
I opened the attached the Delta Light and found a surprise inside–its original diagram. It's super rusted inside as you can see.
Thought it would be fun to share.

 

[morton]

You can adjust focus by screwing the bulb in or out? What is a bulb spring?

 

[Phattiremike]

I’ve found the same instructions in many lights, it’s always a cool find and I always leave them with the light.

 

[jchicago]

You can adjust focus by screwing the bulb in or out? What is a bulb spring?

I remembered your question and looked. Check it out...

Sent from my iPhone using Tapatalk

 

[morton]

I remembered your question and looked. Check it out...View attachment 736556


Sent from my iPhone using Tapatalk

Never seen that before....assume it's to keep the bulb from unscrewing like the springs on DR hi/lo set screws. Still don't understand the screw in/out focus.

 

[vincev]

Cool find.Ya never know what may be hidden in those lights.lol