seriously....
you have 2 of my favorite cards except the double ghosted front portrait on back bender, or the missing color printer scrap plank, the "unknown" 8 sl proofs, collins proof..........
1) the multi back you have w/ brown om(btw Leon, i have another printer scrap, larry Maclean hand cut no fleshtone, but sgc wouldnt label at the time.. from that "Nemo" find where your card was discovered....came from the same shoebox/seller etc....email me and i'll send you the scan!)
2) your Matty Proof
all those cards make up their own "unique one of a kind " set...
Please don't get buried with them and leave them in your will for this humble freak!!