Here is the fan off of my 73 318. September 72 SPD but built on Oct 12th.

The fan was repainted in the 90's but I couldn't get the spacer off. When I was redoing things a couple years ago, the spacer needed to be removed. It ended up cracking it was on there so tight. You can see what's left of the "ENGINE SIDE" stamp as well as some orange paint or possibly adhesive on the spacer and fan.