B stamped valve wheels with appropriate 2nd generation Quicklite mixing chambers, and single patent stamp air tubes.
The lamp is in quite good condition. What type of filler cap washer; looks like the seal washer used on some stove or is it a special O-ring? The ball at the top of the hanging rod is in great shape too. You have done a great job on this uncommon lamp.
Thank you all for the kind words. @Sedgman that is an HVAC compatible o-ring. We do a lot of automotive AC work so I keep a good stash of them here... I like to be able to tighten my filler caps by hand
@Walkop Quicklites are not know for their brightness, but in it's day I'm sure it was a nice addition to a large room.
@Blueflame the shades in the light-up picture are reproduction 329's which last I knew were still available from Leacock -Coleman. The shades pictured un-lit are earlier 306's which are commonly found in antique stores here in the states. Many GPA and wickie lamps used those from the late 1800's on.
Many years ago, when I was barely into collecting Tilley lamps, a part of one of these appeared in a local auction but not recognising what it was I let it go. Silly me.