Tony, So I understand and a recap for all here including me. The unique stamping (widely spaced S P 89) stops around 21-13700, so only around 700 guns since the s/n's begin at 21-13000. As for IK dated SP 89's in general, they last s/n accoring to your information is 21-15789. So they imported approx. 2789 SP 89's in 1989. And from my own memory, I think from your stats some time ago, they in total over the 5 years(89-93) imported approx.
13k total SP 89's, I think, please correct me if Im wrong. Thanks AGG.