Complex sentence: He also published some Gem Facsimiles in the Greyfriars Book Club these were intended for collectors and were nicely bound in green with gilt edges and supplied in a slip case and limited in the number published to 400 copies.
Split into simpler sentences: He also published some Gem Facsimiles in the Greyfriars Book Clu. These were intended for collectors and were nicely bound in green with gilt edges and supplied in a slip case and limited in the number published to 400 copies.