R27 Double Transfer On Bottom

I have been going through my documents, some that I have had for 20+ years, and noticed a ratty document with a small note written in pencil. The note said "double transfer" and looking at it it does appear that 2 of the 5 stamps (which are a pair) do have double transfers. Pretty cool I thought. Looking up the R27 in the 2011 Specialized it list a price for a double transfer on the TOP of the stamp but has a dash for a double transfer on the BOTTOM. Looking at the scan the two stamps in question are the 3rd and 4th from the left.

Giving the scans it may be hard to see. I think this one will go visit Bill.

certainly worth letting Bill look at it and render an opinion.