Core memory unit from a ROLM militarized NOVA computer, 9.5″ x 6.5″ x .5″, marked on the edge: "ROLM Corporation, Santa Clara, CA, Mod. 2011, Opt. 2, Ser. No. 5251, Loc. A2A9, Ser Ser. No. 5022, Made in U.S.A." One side has an Ampex warranty seal and Ampex Memory Products Division label, identifying the board as "Assy No. 3257044-02, Config. 16KX16, Core Type 1855-10B, Rev. C, S/N TA1242, EIA Date 8017." In fine condition.