Updated the price to $38,000 and description based on their discovery of the waffle marks.
Quote:Rare #613 Harding 1923 Stamp 11 Perfs 22.5 X 19 1/4. I soaked the stamp in warm water to remove the hinge, and when I took off the hinge and this pattern appeared. White angled squares. Is this some type of watermark because when the stamp dries, the pattern disappears, and when you wet the stamp, the pattern appears. The stamp has a slight curl on edges. I have been selling on
ebay for 20 years I am here to sell and make buyers happy.
Also added a 'wonderful' german collection for $5,000 of which I am sure you all may be interested.