Yes, your explanation counts as a full point!
Indeed, underground parody banknotes issued by banned Solidarity as communists weren`t able to track down and arrest all activists. Reagan banknote refers to the economic sanctions that US administration imposed on the communist regime - no more loans!
The second note features Rakowski, a former chief editor of a political magazine, who was a vice Prime Minister at the time. He was hated by most Poles because he officially supported martial law and abused Wałęsa.
I have no more in my collection of photos but as you said, there were many of them, you probably saw this site below.
Anybody interested, check them here:
Where was the picture taken?