Some of the differences are: Eureka's cab is varnished walnut. The steam dome has a brass wrapper. The sand dome art work on the wrapper has a different design. Eureka's drivers are larger, The cylinders have brass wrappers. The tender has the railroad name "Eureka & Palisade" gold leafed in the oval side panels. The injectors are mounted in the cab. Not to mention 24 years of "patina" from running thousands of miles over that time.
Aside from these minor differences, Glenbrook is beautiful! Great job Chris.
Dan