Vintage Big Little Book lot of 6 Dick Tracy Dan Dunn Secret Operative

This lot includes 

Dick Tracy on Voodoo Island 1478
Dan Dunn Secret Operative 48 and the Underworld Gorillas 1417
Dan Dunn Secret Operative 48 and the Crime Master 1171
Dan Dunn Secret Operative 48 on the Trail of Wu Fang 1454
Dan Dunn Secret Operative 48 Crime Never Pays 1116
Dick Tracy on the Trail of Larceny Lu 1170