This is an unused/unfinished production casting, missing the spray nozzle (the Prop Dept. typically applied custom-machined brass nozzles to the screen-used versions). I already own what I thought was a 1:1 scale casting of a screen-used hypospray, but compared to this casting my other one (though nicely detailed) is noticeably smaller. Made of solid-cast resin, it is awaiting application of the correct paints and a replacement nozzle.