I make this stamp as either Y&T 11 or 22 (SC 11 or 12, Mi 11 or 18), depending on whether the paper is greenish or not. My problem is that none of these catalogues lists an imperforate variant for this value with dotted background (fond pointillé, auf punktiertem Grunde). It's on ordinary weight paper, not on heavy stock. Does anyone have more info?
