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
"...Good people pass away; the godly often die before their time. But no one seems to care or wonder why. No one seems to understand that God is protecting them from the evil days to come." Isaiah 57:1-2
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."