What does the "Group Number" on Dunhill Shell Briar Pipes mean?

[AndyCAYP]

Also - I see where these go up to at least a Group 6, not just 5 like I previously stated. I tend to not look into this brand too much because I'm in love with their Cumberland, County, and Shell Briar models and the more I look the more I want to buy one and buying one would get me in HUGE trouble!

[NeverBend]

David, (@Droy1958), I'm sitting in sunlight so I can't see detail on your listing (I'll look later when I'm inside).

droy19580209 | eBay

The F/T means fishtail, the style of stem. It widens toward the bit.
2 is the size
S is Shell (sandblast) finish

Your photo of the top of the bowl clearly shows that the pipe is in great condition. Is there a number, with a line under it (1950s) or not (1960s). The number is often found to the right of the other nomenclature (this is the date code)?

If the number has a line under it then it should be 1950 + the number, if there's no line under the number then 1960 + number.