The 3 cent "Mufti"
http://postalhistorycorner.blogspot...ue-1937.htmlThe cover was taxed 10 cents indicating a 5 cent deficiency. The 2 ounce air mail rate to Newfoundland was 11 cents (6 cents for the first ounce and 5 cents for each subsequent ounce).
Unfortunately the dues are not tied by a postmark. This is often the case when Canadian postage dues were affixed to short paid items. Some collectors of Canadian dues will not collect untied due covers. The reason of course is that the dues could be affixed by a collector who wants to "upgrade" the cover. I am usually not concerned unless the cover goes beyond the $10 range.
As for the advertising cover, I understand that there is a new BNAPS study group that is interested in illustrated covers. Unlike Newfoundland advertising covers, no attempt has been made to list Canadian advertising covers in a catalogue. There would be too many. I suppose it is possible to have listed them for Newfoundland businesses.
Dominion Roads Goderich (company history)
http://archives.hcea.net/?p=creator...eator&id=221Can anyone explain why only 5 cents in dues was affixed to the envelope? Wouldn't 10 cents have been the correct amount?