PRB&M (Phildadelphia Rare Books & Manuscripts) is now entirely devoted to IRS qualified and other appraisals, collection building consultation, and to limited, private bookselling by direct offer only. Founded as a strictly antiquarian rare bookselling concern in 1984, PRB&M joined the Antiquarian Booksellers Association in 1985, executed its first major appraisals in 1991, established its website in 1997, created its range-expanding "Sessabks" in 2001, and welcomed visitors by appointment at The Arsenal between 2006 and 2021.

Since 1 January 2022, that long experience has been brought to bear in service of their clients' needs in newly focused & still evolving ways. For more information please call (215) 744-6734 or visit their website.