I'll to get back to you on that. I'm going to be out of town for a couple of days.

I have used a variety of soaps, including Williams years ago, with the same results so it is not specific to the soap. Because of reading this forum I had to try a couple of other soaps so I now have three pucks of soap that I use depending on my whim. That means I'm not going to be buying any more soap for a couple of decades! My favorite, which I learned of from this forum is Tabac. Another is a Crabtree and Evelyn Sandalwood that I'm not thrilled with (nothing wrong with it, just nothing special) that I bought simply because I was buying a C&E brush. Finally, a Caswell-Massey Sandalwood that I bought over 10 years ago. That one has the shaving quality and sandalwood smell that the C&E is lacking.

The puck I used prior to those 3 was also a Caswell-Massey. I bought the 2 C-M soaps simply because they were on a clearance rack and were really cheap. Prior to the Tabac, I have pretty much figured that there was little difference between soaps and given how long each of my soaps last, I have had little opportunity to do much comparison shopping.

I suppose the main point is that you CAN make your soap last a lot longer if you want it to and in my opinion that longevity is dependent upon your methodology, not your choice of soap.

I'll try to come up with pictures in a few days.