ok so in regards to NFT's i grade them in the batch number in which they are released my basis would be if the number of nfts number in 10000 pieces #1-#500 if you sold yours in the early numbers then lets just say you lost yourself a goldmine cause those are from what i believe are the SSR of the batch of 10000 #501-#2500 these are what i believe are the SR+ of the batch of 10000 #2501-5000 the SR of the batch not that high in price #5001- 9990 also know as the R/rare ones these units range in low prices and are easy to acquire in the long run #9991-10000 also known as the LR or limited rank since you will need these 10 if you want to complete the whole thing much higher in price than the SSR so if you get them make sure to either keep or sell at a much higher buyer