Crucible tongs; for lifting a fire assay crucible out of a furnace.
Most modern crucible tongs are made for pulling the crucible horizontally out of a assay furnace door, the tongs are flat (same plane as the handle). Those where made for lifting a crucible vertically out the top of a furnace.
good
might have also been picked up at a rondy for lifting lids off of dutch ovens on the coals