Den,
Thank you for posting another excellent display between an original & reproduction RLB dagger. It's interesting to see the side by side comparison & difference in size, shape & quality.
Although rare, I do believe SMF manufactured RLB daggers. The ones I've read about, & there were only a few, were all 1st model officers' daggers & all were of excellent quality. The interesting variant on SMF RLB daggers was a soft, leather only scabbard with staples used instead of screws. The scabbards resembled DLV & transitional Luftwaffe 1st model scabbards in their construction. Most recently, I think Tom Johnson sold one 4 or 5 years ago for big money & I think it's pictured in his more recent coffee table book series. I'll check to confirm this in a bit.
As far as other SMF RLB daggers, I've seen a few, 3 to be exact. 2 of them were 1st model EM models & 1 was a 2nd model officer, at one point owned by Sokel. Is this the one you're showing?