Door hinges greasing

[col320ce]

My hinges don't have a greasing nipple. Is this correct for a 230SL?
What's the correct way to grease these hinges?
Thanks for any advice....

[rutger kohler]

Hi, I can remember Andy Burns getting new pins machined for some of these hinges.  I'm pretty sure if you look on the other side of the hinge, you will see a small hole that a needle nosed grease gun fitting will fit into.