It's always nice when something unexpected happens! I had seen this item: the 1943 Surinam set to mark the visit of Princess Juliana, in marginal blocks of four. I thought that might be a nice addition to what I have already. There was no image but it was from a trustworthy company and the strating price was low, so I placed a bid and won the item.
And lo and behold, when the item was delivered it appeared that one of the marginal blocks had the printer's imprint!
Now that's what I like!