It’s Mac to the rescue again with some nice choices of cast iron porcelain-enameled sinks for the kitchen. The first two sinks pictured are both from Mac the Antique Plumber, which says that the same same supplier has been making them for 70 years. I believe them. I salvaged four (yes, four) similar sinks circa 1963 recently, and will install one in my upcoming kitchen reno.
The stainless countertop sinks are both from Elkay. I recently saw the first one in an ad from the 50s – it appears to be virtually unchanged from then.