Detective Comics #477 VF/NM Signed w/COA Marv Wolfman 1978 DC Comics

This is a vintage 1978 Batman Detective Comics #477 signed by Marv Wolfman w/COA-certificate of authenticity (size is approx: 5 x 8 inches), complete and produced by DC Comics. The comic would grade a Very Fine\Near Mint condition with spine stressors, mild cover wear and interior pages are off white and complete. The cover displays strong vibrant colors.