I guess you know this.
The Burt Co made both chips, pre Paul-Son.
Christy Jones never made chips.
Christy Jones owned the H/C mold but all of there chips were made at Burt.

Bill Christy teamed with Paul-Son and brought the H/C mold to Paul Indy after the breakup of Christy Jones.
Paul Indy built molds and produced the 1st H/C's not made at Burt on Main St in LV.