I had never heard of this until you said it. I kind of thought you were full of ****, nope it's a real thing that people did. My bad, still, you did a great job, fooled me.Thank you! It started as a nodak spud 80% lower. I sent it out for the retro engravings, then SBR'd and milled. This was back before Colt started sending cease and desist letters to people engraving their logos.