Rick, the water is muddier than I thought. Maybe you figured out that both quotes below are wrong. I seem to blind to my own mistakes until a few days after I post them.
Quote:
both left stamps are lithograph: a #31 and a #35.
Above quote should have read "both
top stamps are lithograph: a #31 and a #35"
The below quote should have read: "engraved
#43 and #49 on the
bottomQuote:
engraved #35 and #49 on the right
Now I hope it is clearer than mud.