Two different years issue and denominations (0,10 and 0,05)
As far as I can tell...1925 and 1928
Perhaps that's the suggestion?
It is listed as the 2ime series
Maybe? If not sorry I can't help I don't see anything about sizes for this stamps surcharge in 06-07 dallay Europe et asie...
Just the 22(a) being a 0.10pi du grand liban and (an exception about lithography) in the top notes