Building Services Picture 6 (FIRS Prototype Office, Gusau) Picture 5 (Police Service Commission Headquarter Building) Picture 4 (Federal Inland Revenue Service (FIRS) Building, Gusau) Picture 2 (Central Bank of Nigeria, Umuahia) Picture 1 (Central Bank of Nigeria, Awka) Picture 7 (Centre of Excellence, University of Ibadan)