Lot of 12 Blue Book of Fiction and Adventure 1930s-1950s Pulp Magazines

Lot of 12 good, vintage, softcover magazines; each magazine is square and showing well thumbed and age-toned pages; each magazines cover (wrap) shows significant to heavy shelf wear, including age-toning, marks to several front covers, wear along the spines, and wear along all edges and corners (see photos) but overall remains in good, vintage, condition; purchaser signature may be required upon delivery. H5