When the CBAT moved from Copenhagen Observatory to the SAO (which in 1965 had had its offices at HCO for nearly a decade, following the move of SAO from Washington, DC, to Cambridge), for some reason the Copenhagen Observatory never sent a complete set of IAU Circulars to SAO. Thus, only a single set of the pre-SAO IAU Circulars exists at the CfA, namely the HCO set -- as the HCO Library maintained a subscription from the publication of IAUC No. 1 onwards in 1922. The Central Bureau thus never inherited a full, complete set of IAU Circulars from Copenhagen Observatory upon the transfer in 1965, and the CBAT must rely on the HCO Library set for any immediate reference to (and for the scanning in of) the older, Copenhagen-published IAU Circulars. As the HCO set has many problems that make many of the IAUCs not very (or at all) readable (and many original copies are missing from the HCO collection, replaced by often-very-inferior photocopies), we are asking other librarians to help complete a working, readable set that the CBAT staff can readily access.