Scourge of Billund

I was really into the collectables during the height of their popularity, but I have not paid much attention to them in a while. I have an akaku that I am pretty sure is a pre-production prototype. It resembles the regular production masks, except the plastic is a little bit different and the mask number (on the inside) is missing/blank. I recall some discussion of prototypes of the toa and the bohroks way back.--SOB