Hmmm. That is supposed to be a new guitar, and they supply them at the factory with EJ17 PB mediums. But I see what you mean, the silver color of the wound strings sure says those are not PB strings.
It has been a bit of an odd transaction. Chicago Music Exchange listed it as USED. But when I made them an offer they came back and said it is a new guitar, just has been sitting around longer than they liked and made a slightly higher counteroffer, which I accepted based on them saying it was a new guitar.
But why would a new guitar have non-standard strings on it? I checked the serial number with Collings and they said:
Your CJ35 G SB was completed on 3/3/2017 and was sent directly to Chicago Music Exchange.
Further their SN report says it was shipped with these strings: D'Addario EJ-17 (.013"- .056")