Not my items, but the seller Gradedbricks is running a solid sale making his 1956 Topps baseball signed cards approximately $10 each, and they're all certified by either CAS (Mike Root) or SGC. Looks like he has HALF the set available right now.
https://www.comc.com/Users/Gradedbricks,so,_AUTO,i100
Figured I'd pass it along. Create a COMC account and you can buy them and leave them in their warehouse until they reopen from the Coronavirus shutdown of Washington state. You'll also save money compared to just buying through the website as a guest.
Or if you think they're undervalued, you can buy some and them flip them on COMC by immediately repricing. I purchased a couple to do that.