Anyone seen a Production Number (SN) lower than 590 on a HK 41 1966? References state somewhere between 150-300 rifles were imported. Last one sold on GB was SN 868. Many seem to lie beteen the 590 and 884 numbers. My question is which number was the last one imported and which number was the first one imported? Does anyone have a Production Number ( SN) lower than 590?? or higher than 884?