StampSmarter shows that design was used from 1919 through 1969 OX21-OX40. Since it is hyphen-hole perfed that narrows it down to OX38-OX40.
https://stampsmarter.org/features/Id_US_Seals.htmlBecause the entire booklet pane is pictured, the "c43 ..." text in the margin means that it must be OX40, with a value of $2.25 for pane of 5 (Scott Specialized).