"Thermo Thelma" in this deck of Old Maid cards from 1968 still freaks me out

I had this Old Maid deck when I was a kid. I liked the oversize cards and the Paul Coker Jr-esque illustrations, but I share Steve Banes dread of Thermo Thelma, who “is looking at me with that over-sized rectal thermometer in her cruel clutches!”