Too many things I've made over the years I never got pictures of ... too many ...
Tiss a common fault many people have.
Wrought iron is still available. There is one company in Sweden still making bars. Yes, it does get pricey.
The main source up here in NE Iowa is old wooden wagon wheel rims, wagon parts, and old bridges being scrapped. Most any scrap yard can set some aside for you - if they know what to look for. The big problem is the sizes of the material you find. Most are pretty large. But occasionally you can find some really old re-rod that is wrought iron. Then you can get some rod far closer to the normal sized stock you want.
One other option is something called PURE IRON. One plant out East got talked into making a specialty run of iron. It is almost chemically pure iron. It works and acts very much like true wrought iron. It just doesn't have the scale inclusions, or develope that "wood grain" type structure. But it also is "soft". You need a larger/thicker sized piece of Pure Iron than you would need with modern welding iron/steel. It will bend faster/easier cold than the modern stuff.
Some knife makers have been paying between $2 and $5 per pound for real wrought iron. It's all a matter of what you have available in your area.
And, nowdays, modern welding-shop iron/steel is just called ... wrought iron ... by most people. Just one of those little word things.
Mikey - that grumpy ol' German blacksmith out in the Hinterlands