Parker Service Manual #6643 16th Edition ruby And you need to relieve

And you need to relieve the spring pressure so the new pellet retainer doesn't get pushed off while the glue is curing

They all have vertical slits cut in them as opposed to dipper points which have no cut slits

The Montblanc Diary and Collector's Guide by Jens Rosler

Mint marked

If you want the one stamped "Golden Rule Pen & Pencil Shop"

Parker Service Manual #6643 16th Edition ruby And you need to relieveSoftbound reprint of Parker Service Manual from 1947. 16th edition from the Parker Pen Company in Janesville. Spiral bound to sit flat in a workshop. Includes detailed illustrations, parts, repair instructions and tools needed for Parker 51, VS, Vacumatic and Duofold pens and pencils. Instructions on general care, fixing leakage, removing stains on pen and Parker products. Incredible resource.