If stamps in a collection from any era at any time and not paid for stamps from a dealer then in most case the stamps will be in used condition and the collection will be of little value, however a collector...
When searching for a 5/- Green Harbour Bridge you need to be extremely careful as it as become apparent to me that lately some sellers have become slightly clever and dishonest when creating their listings. ...
Pictured below are the different watermarks (WMK) for Australian Pre Decimal Kangaroo on Map Stamps, which are visible on the reverse side of your stamp (gummed side)when the stamp is held up to the light. ...