As indicated above the paint scheme of the Eureka's tender is a Baldwin standard design. It is the same as used on the Sonoma at California State Railroad Museum. In fact, when the Eureka was still owned by Warner Brothers pictures the staff from CSRM went down to the LA area and stripped the tender of the Eureka to get the design for the Sonoma from the Eureka.
Dan Markoff then used the drawings prepared for the Sonoma to decorate the tender of the Eureka. Check with the staff at CSRM library to find out about obtaining a copy of the drawings.
Brian Norden