minor_LEGEND
Senior Retro Guru
That's a 93 stem. Sunken (shorter) expander bolt which should have a black plastic bung to hide it. Fr bar clamp will have a slotted hollow for weight loss & the alu wedge has been on a slight weight loss program too.
The 91/2 stems have a longer expander bolt & heavy cast cap for the bolt to sit in & painted black.
The 91/2 stems have a longer expander bolt & heavy cast cap for the bolt to sit in & painted black.