Here's a link to an old thread where we talked about it.
LR pin question
And quoting my reply
The answer is "it depends."
For individual items, Merlin's answer is probably correct. In the past they used just make LE10,000 pins and people would buy them. Nowadays, people are okay with buying OE items, or okay with buying LE500 or less, but if they see LE10,000 it's a turn off. Calling it LR puts it into a middle ground. But they are in reality, really highly produced.
Mystery Box Sets. This is where it gets complicated. The earliest LR mystery box sets came out at the end of 2010. While there was no announced number of boxes, you could guesstimate based on how fast things sold out that there were probably somewhere from 3000-5000 boxes. So take a set with 16 or 20 pins in it. At 4000 boxes, 2 pins per box = 8000 pins divided by 20 styles that means there are only 400 pins of any specific style. Isn't a LE400 pin usually worth something? The quintessential series to use as an example is the Disney Girls Reveal / Conceal set.
Or take the pins coming out for the Epcot Pin Event. There are usually about 1200 attendees, and we were restricted to only being able to select 7 boxes. They would not assume every attendee would want 7 boxes, but lets start there. That would be 8400 boxes. There are 16 pins in the series. We know 8 of them will be LE250. So 8400 boxes = 16,800 pins. 8 x 250 = 2000 LE250 pins. So that means for the remaining 8 pins the number sold would be LE1850. If there only 6000 boxes, and the same 2000 LE250 pins then each of the remaining 8 pins would be LE1250.
Then there are other Mystery boxes that are sold marked as "Limited Release" but sold for years. Namely, the Beauty & the Beast set that came out when New Fantasyland opened. Those are a lot closer to open edition, than they are limited edition.
IMO, LR Mystery Box Pins that are released only once, are a lot more limited than people give them credit for, especially for the 20 pin sets. Most of these are Reveal/Conceal collections or Seasonal mystery collections.
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So for the Coco set, it all depends on how long it is stocked. If they go through their initial order and it's not restocked, then these will be defacto LE pins but with an unmarked edition size but are probably medium to low LE (500-1500). If they are available for the rest of the year, and into next year then they are more like an open edition or really high LE.