GRI on German New Guinea Colonies SG 33 FDC plus SG 3-4 lovely cancels

Sent to well-known Sydney stamp dealer Fred Hagen. All covers with the threepenny GRI Registration label are very scarce and this is even rarer as a first day cover. Although it is addressed to a dealer it's still can be regarded as commercial mail and most of the known covers bearing this stamp are addressed to dealers or collectors.
Sent with Standard Delivery - Registered