I purchased Amerock pulls for my kitchen and I couldn't find them discounted anywhere. They were the same price everywhere I checked. I ended up purchasing them through my contractor who passed along their wholesale discount to me. I paid just over $800 for my pulls and think I saved about $68. Just a word of caution about ordering pulls online. Make sure you're able to see and touch them in person before you buy all that you need. Pulls that look practically identical can feel very different. Just want to make sure you're happy with them. I thought I was going with one pull until I saw it in person. Realized it was too small and it wasn't comfortable to grip and open drawers. Went in another direction and am very happy.

I see about three different pulls/knobs in that picture, but I here are some from RH that are similar. They have many other styles that would work too. I am sure there are many different sources for this type of pulls, as they are very classic. Ephram Pull from Restoration Hardware

http://www.leevalley.com/en/hardware/page.aspx?p=50447&cat=70806,43521,43523&ap=1 http://www.leevalley.com/en/hardware/page.aspx?p=60765&cat=70806,43521,43561&ap=1 http://www.leevalley.com/en/hardware/page.aspx?p=64148&cat=70806,43521,43561&ap=1 https://www.pinterest.ca/pin/232146555776060853/

CB2 has square brass pulls in several sizes in either brushed brass or antique brass. https://www.cb2.com/antique-brass-square-handles/f20028