Hair trap drain for stall shower in 1960's home with "Funky" custom hole pattern

DO NOT MAKE THIS IF YOU WANT A FUNCTIONAL DRAIN COVER! Not enough water will flow through it! See my other designs... :-)

this is a replacement drain cover for a slotted one that lets all the
hair through.
3.25" bolt circle x 3 bolts. Flange is 0.15" thick. OD of flange in 3.62"
"Funky" has a custom designed pattern with a flat bottom and raised
top. My other one has round drain holes and reinforced bottom.