We know the timeline of the Crowbar?

Kurloz gave it to Gamzee either Gamzee gave it to Caliborn directly, or the crowbar was taken by Vriska during their trip on the Meteor, given to Jack English, then sucked into that blackhole which presumably lead to Caliborn’s session and once there Gamzee gave it to Caliborn, it’s unclear.

 Anyway, then Caliborn used it in his fight with Yogurtbooger, presumably gave it to Crowbar afterwards, then Spades Slick took it when he killed Crowbar and it was lost.  Possibly left in Felt Manor and jettisoned into the Furthest Ring when the Green Sun was created.