*Marvel: Three issues of Amazing Spider-Man from 1970 featuring arrivals and departures. #83 has the debut of the Schemer who (spoiler alert) turns out to be the son of the Kingpin, in #86 ‘Tasha adopts the Black Widow costume that we have come to know her by and #90 features the tragic death of Captain Stacy, father of Gwen. All reasonable mid-grade copies.
PICTURED: AMAZING SPIDER-MAN
#83 VG/FN p £42 Pence stamped. Solid copy with minor edge wear.
#86 VG p £40 Pence printed. A couple of long diagonal creases across Black Widow figure  softly break colour. 
#90 GD/VG p £28 Pence stamped. A little worn; tiny ‘spotting’ effect across cover.