I have found long tubes and short tubes that come on burners marked 5127 as well as on unmarked or marked with a single 8. Some assemblies have more nickel plating than others. I believe these are earlier. I also have a NOS burner with no marking. Neither of the lamp burners have nickel plating at all.
The little Tee shirt plate is different early from late. Early ones have full arms; late ones have one arm smaller. early is on the right
The fuel pickup tubes have differences. I believe the early tips were flat unmarked, and the later are P tips. One of the tip covers is noticeably longer than the others, with a knurled end. The NOS one is on the right with a nickel plated P tip and sporting a 220B fuel screen.
There are differences in the vent nuts: The early ones have much deeper vertical lines. The two on the left are NOS. The earliest is on the right. The top one must have been a replacement.
And the fill caps are interesting, notice the vent hole in the wing.
~ stoves are important too~
Coleman Slant Saver #28
Quicklite Crew. #16
"...“Those that can give up essential liberty to gain a little temporary safety deserve neither liberty nor safety.” Ben Franklin"
Eye-SEE-C-C Member #1333 -- MilSpecOps #003
"Michigan - from the Ojibwa word “meicigama,” meaning “great water.”
What I find interesting is that Coleman publicly blamed the failures of the Slant on the performance of the T-88 generator with poor quality gasoline when the range of design changes to the fuel pickup shows they clearly realized the orifice metered fuel system was problematic.
ICCC Member #1337 (Thanks Dean!)
Coleman 275 Appreciation Syndicate #0086
"One of the sanest, surest, and most generous joys of life comes from being happy over the good fortune of others."