OpenSCAD Code:

//Facet Number
$fn=100;

difference () {

//	£1
translate([0, 0, 0])
    cylinder(h = 3.15, r1 = 11.25, r2 = 11.25, center = false);

// string hole
translate([0, 8, 0])
    cylinder(h = 4.15, r1 = 1.5, r2 = 1.5, center = false);

// Letters
scale([1,1,-5])
    rotate([0, 0, 0]) 
        translate([-4, -6,-0.8])
            linear_extrude(1) text("E", font="Liberation mono:style=Bold"); 
}