- Uncut copy. Ticket tipped in on verso frontwr. Paper over backstrip splitting; wrappers sl. discol. along margins; outer edge backwr. w. vague red stain.

= Batten/ Stols 7; Van Dijk 90. Very rare.

AND 3 others by the same, i.a. Poging tot afstand (Brussels/ Maastr., 1928, 2nd ed., frontisp. by C.A. WILLINK, orig. wr.).