I recently swapped for a disassembled Dillon 550 with a member on this forum. The press is fine, but after I went through the boxes of parts and identified everything, I was left with this.
Polishing Note: Dillon RL 550B Primer Slides (13920) are manufactured with either a silver or a black Teflon coating. Do NOT polish either the Teflon-coated Primer Slides or the black Teflon-coated Primer Track Bearing (14015, available as a free upgrade from Dillon).