Help!

[Luma]

Help me identify these two old light bulbs!

One is marked on the base 250 25-852 and the other 250 16-852, 250 volts, 25 - and 16 - are cp but what is 852?

I know they are old but who made them?
They are bought in Sweden.

Images

http://www.flickr.com/photos/hb51/5065685708/

http://www.flickr.com/photos/hb51/5027005785/

All replies are welcome!