cast aluminum battle lanterns

[BOMBS_AWAY]

I have recently recieved a battle lantern that I got on ebay, it is one of the cast aluminum ones here is the pictures:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=585&item=6179563702&rd=1&ssPageName=WDVW

here's pictures of another one that I didn't get:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=13974&item=6522681948&rd=1&ssPageName=WDVW

the lantern I got, for resons i do not know, has a miniature screw base bulb. This which is unusual for one of these lanterns, it is the only one I have seen with a screw bulb, all others have been dual contact bayonet base.

here's a lantern I'm planning on buying, I have two of this modle already that have been sanded and polished (they look really cool) but I don't have a digital camra so this will have to do:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=6545528746&fromMakeTrack=true

I have some questions about these lanterns:

1. Do you own or have you ever seen one with a mini screw base bulb?

2. What years were these lanterns produced?

3. Was the lantern in the last link produced for military service?

All help will be appreceated!
Dustin