The prices of ESP signature cards are hard to fathom, I feel many are under priced but there just seems to be so many in the market.
The 13 Traders Young Guns were 1:216 (6 boxes) and un-numbered, rumoured to be a production run of /260. There is so much unsold and unopened stock of this product that there are not many of these around for sale. I would say $150
The 14 Elite YG was numbered and /130 but for some reason the Elite signatures go cheap. I think that With Tedesco being the player he is and only getting better this would also be $150 but should be more.