I have a Astra Constable .380 Pistol it has a serial number that is all numbers no letters. It's on the lower receiver part for example it is 12xxxxx it is Astra not ( Astar ) when Astra and Star merged together and made guns under the name under ( Astar ). Anyways how do i decode the serial number there are no Letters only numbers i would like to know what year it was made? I have searched online all over for a chart or something i found one and it was really no help as it pertained to Letters with numbers only. I cannot find any proof marks either. This is a Nice little pistol by the way i love it. Anybody know where i can find a Original Owners manual for this pistol and or information on Decoding is greatly appreciated??????