In my year-long quest for the perfect shirt buttons, I have recent found what I think is the most perfect Australian MOP. Buttons on RTW shirt makers that I admire most are Borrelli and Zegna Napoli Couture, and I have long wondered where they source their buttons from. I have recent acquired a limited supply of Autstralian MOP that are 99.9% if not 100% identical to the Borrelli buttons (and Zegna might have the same source too only have them punch three holes instead of four). Here are the pictures. I have only two sizes: 16L - 1cm diameter, 4mm thick, for shirt front and cuffs; 14L - 8mm diameter, 3.5mm thick, for sleeve placketts and button-downs. Colour is natural pearl white, simply stunning. I have, in the past, source from Japan and other places, but none as beautiful as these. I am using them for my Ascot Chang shirts here in Hong Kong now. Price: US$1.50 regardless of size. For a button-cuff dress shirt, you will need 9 16Ls and 2 14Ls (total $16.50). For price comparison, Alex Kabbaz is selling Australian MOP at $2.75 per each 3.2mm button; for a button-cuff dress shirt, you will spend $30.25 for buttons alone (and they are 3.2mm instead of 4mm). I do not impose a minimum order. You can order as little as 1 button as sample, or 10 shirts' worth of buttons. S&H anywhere in the world is $3 to $7 sent by registered airmail (mostly $3 to $4 unless in large quantity). Delivery starts October 10 (as I'll be traveling these two weeks). All orders received before October 6 will receive a further 5% off. Supplies limited. This is luxury at its finest. Please PM me for more information.