Collect-on-delivery mail. Important Tact in delivery of C. O. D. mail, Numbers of C. O. D. articles entirely omitted or only partly entered on C. 0. D. money orders, Postmasters to obtain receipts on Form 3367-B for stamp stock issued employees on fixed credit, Postmarking of official sealing stamps on " bad order " registered articles, Changes in domestic insurance fees and limits of indemnity, effective July 1, 1932, C. O. D. parcels returned to senders to be indorsed with reason for nondelivery, Form 3849-d must be issued to senders of undelivered C. O. D. parcels; [issued by] 3d assistant Postmaster General.