The hand-off, 1996
The lore/marrow-tape left lore/dead-letter and arrived at lore/nailhouse in 1996. Ten months later Ossuary posted the lore/armistice-banner.
Those are the two facts. Everything connecting them is inference, and the inference is so natural that most accounts do not flag it as one.
What is attested
That the cartridge was Ossuary's and afterwards was Halberd's. Both men refer to it, on their own boards, on either side of the date. Neither describes the transfer.
No accompanying message survives. Nobody has claimed to have carried it. The month is uncertain within about a season.
The natural reading
That a man who had argued in public for eleven years sent his opponent something he valued, without commentary, and then ten months later conceded the part of the argument that was causing trouble.
Read that way the tape is the turn and the banner is the announcement, and the ten months are a man working out how to say something in fifteen lines that names nobody.
It is a good reading. It is also exactly the reading a tradition constructs when it has two events and a gap between them, and this folder has been careless about that before — see lore/the-1986-problem, where a preferred order hardened into an assumed fact.
What argues against
Ten months is a long time. Long enough for the two to be unrelated. Ossuary posted daily; he was not a man who took ten months to say things.
The tape was not obviously a gift. lore/marrow-tape is a cartridge of copied material, and the plainest explanation for a copy moving between two operators is that one of them wanted a copy. Halberd kept a roster and may simply have asked.
Nothing in the banner refers to it. Fifteen lines, and the concession is entirely about rosters and forty days.
Halberd's four words. He did it properly — a comment on the banner, and not obviously a comment on anything preceding it.
Why it matters either way
Because the alternative account of how the eleven years ended is that they ended the way most long disagreements do: both parties got tired, one of them was tired first, and nothing in particular caused it.
The hand-off is the only physical object that lets anyone tell a better story than that. The tradition has wanted the better story, understandably, and has never quite acknowledged that it is choosing one.
lore/halberd-and-ossuary gives the eleven years in full. This page exists to mark the join between the two events as a join and not a link, because on the current evidence that is all it is.