CORBA compliant objects allow applications to be built in a heterogeneous environment. However, the performance of CORBA compliant object implementations has not been satisfactory. We have added object caching at client nodes to the Fresco toolkit which provides significantly better performance when there is reasonable access locality. This system has demonstrated the performance improvements that are possible with object replication and caching with flexible notions of consistency among copies. To allow COBS to benefit from these performance enhancing techniques, we are porting Fresco from Sun RPC to the COBS OTL layer. Apart from the implementation effort, we are addressing the issues of attributes and how they can be used with CORBA objects.