I still have those we spoke about. The exact one was a couple numbers off from the one you were looking for. Only problem is I still have the Mokes that go with them. Also one real nice one my wife took and hung up in the trophy room so that's going to be hard to justify prying it out of her hands. I also have Moke number 40 I forget which yours was that you had used on Catalina. Might be for sale soon with the plate on it. when the weather breaks I'm going to see if I can get it running and then it will be for sale. 99% of the plates were black and yellow, the blue were replacements for cars taken out of service then reregistered hence the wrong color plates. All the Mokes were 1965 thru 1968. Most being 66/67 models. Plus a few Moke Californians. I'll let you know before hand.

Interesting that the Mokes would have had blue and yellow as I assume that they all were imported before January of 1968.
But if they were resold after being imported and registered in California, then they could have gotten an alternate newer plate. Also if any came from out of state during or after 1970, they would have received blue plates.

What was the size of the Catalina fleet at its largest?

Well, I just Googled it and according to the Internet, they went from black and yellow to blue and yellow in 1969. Strange that any of the Mokes on CI would've had blue and yellow, but they did. The photo I posted earlier is a couple of CI Mokes that Tom Schram owns, but here is a photo of a CI Moke that I used to own. It is clearly a MK1 Moke although is has a weird wiper mount.

What was the split from black and yellow to blue and yellow? I was thinking that all of the Catalina Island Mokes were probably the same year model? Curiosity now.

California has a "Year of Manufacture"(YOM) process for using old license plates.
You can also get new plates with the old colors.

//www.oldplateguy.com/OldPlateGuyHomePage.html

Some of the Catalina Island Mokes had the Blue and Yellow plates and some had the Black and Yellow plates as shown in the photo.

Hello. I am trying to purchase a license plate from a Mini Moke that came from Catalina Island, the old black and yellow style. Does not matter which one as long as there is documentation to show. I am a big fan of the mokes that were there and remember driving them back in the early 70's.

Thanks
Scott