Hi,
Your two stamps are RJA33 and RJA34. Their catalog values are minimal, just a dollar or so for each.
That being said, the two cancels on your stamps are worth a premium to specialist collectors (and some dealers), such as myself.
For example, I would value your Lilly cancel at $5, and the other I would willingly pay $20 for.
RJA26 looks like the one shown below. In fact, RJA26 has ONLY the date shown. Compare your Lilly to the image.
Hope that this helps.
Jim
