What is the meaning of Long primer?

A kind of type, in size between small pica and bourgeois.
Webster's Revised Unabridged Dictionary
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APAWebster's. (2011). Long primer. Retrieved October 2, 2026, from http://smartdefine.org/long_primer/definitions/2028748
ChicagoWebster's. 2011. "Long primer" http://smartdefine.org/long_primer/definitions/2028748 (accessed October 2, 2026).
HarvardWebster's 2011, Long primer, Smart Define, viewed 2 October, 2026, <http://smartdefine.org/long_primer/definitions/2028748>.
MLAWebster's. "Long primer" 27 May 2011. Web. 2 October 2026. <http://smartdefine.org/long_primer/definitions/2028748>