Safety railhead sitting on a 25mm round base.

Safety railhead sitting on a 24mm round base.

Safety railhead sitting on a 23mm square base.

Safety railhead sitting on a 24mm square base.

Fleur de lis style railhead sitting on a 25x18mm rectangular base

This round stem railhead has a distinctive spear tip and raised center-line and has a lighter appearance

Round Stem railhead with a 12mm base.

Round Stem railhead with a 16mm base and safety tip.