FINAL(?) UPDATE: Our effort to round up additional shift ***** was not successful. We currently have a total of SIX in hand. I am keeping two of them and the other four are being held for forum members who previously contacted me via email. Our only remaining potential source is Ebay in the UK. I have a "saved search" that will alert me if any more of them are listed. I'll revise this post if we happen to find more . . .

Our UK Crossfire friend Robert Richardson will be visiting the USA again in January 2020 and will bring the shift ***** to me at that time.