A preliminary conceptual design was made of a test module for testing the BCSS lithium cooled, vanadium structure blanket concept in a tandem mirror fusion test reactor. The test module is intended to run at the correct stresses and temperatures of a segment of the blanket, while operating at reduced neutron wall loadings. Although this approach ties the effort to a single design and its issues, it tends to reveal interactions that might not be apparent if a more general approach were taken, and can lead to some useful general conclusions.