If it's narrow it be for digging drainage trenches or post holes.

Having dug my fair share of post holes, generally want to keep the hole as close to the size of the post as possible. As undug ground to much firmer and does better job of holding the post upright.

No Ren, it is regular size

It's like the spade on the left, except the bottom is round , not flat

Coal shovel?

I don't know. It could be

Sometimes, businesses import stuff without knowing exactly what they are for.
One time I was in a shop and started chatting with the owner (suggesting to him that the market has changed from what it was 20 years ago, and that he has to relocate his business to more customer-dense areas). Anyway, we chatted for long enough he started talking about business difficulties. He showed me something and said : see , I received a container from China and it contains this stuff, I don't even know what it is.

He was showing me a set of lock picks. LOL.
He never ordered then, and doesn't know what they are.

In that incident I was reluctant to tell what the stuff was. But there was another example when I took advantage of the business "mistake". It was a camping store with the usual stuff. In one corner, there were the white BBQ fire starting cubes, fire gel ..etc. However, there were other boxes of similar cubes that looked the same, with a little higher price. Everyone bought the cheaper ones and left these. Not only they were a bit more expensive, but they smelled bad. LOL.

Nobody knew what they were because they were Esbit cubes : no one around here uses Esbit, or other solid-fuel stoves. Most everyone uses propane or butane stove, or wood.

So (evil smile) I grabbed all the boxes for myself.
And sure enough, that shop never imported them again.

Back to the shovel/spade.
It seems they imported it with a 1000 others , and no one cared about the geometry, LOL. So, as soon as I get myself an anvil, I will flatten it and use it for cleaning around the garden.

My bench vise has a small anvil area on it, about 4x4". It's worked well for me.

Yes, I have seen similar models at work. But really, I don't need that big a bench vice. I have two; one is small and fixed on a workbench by 4 screws, the other is portable and can be clamped to whatever table or bench. Neither of them is big enough to have an anvil surface.

Going through my TO DO list, one task requires me to visit a welding shop. So, I will ask them to cut for me a sheet of thick metal for the anvil.

I have settled for the light duty design made of a thick piece of metal (6x6 inches) fixed on thick wood. Half of this area is adequate for most jobs, but maybe some part of the surface is damaged somehow, I will still have more square inches of usable metal. Also, this bigger area allows working on bigger surfaces like a spade, if I need to flatten it.

The other option I've seen is using weights. Find a place like play it again sports that buys and sells used benches and weights and buy a big already banged up weight that you can bang on.

I've used a sheet metal dolly or an old brake rotor for light duty stuff.

Well, Eugene. My son has some weights in his room. However, if one crawled away and he found dad using it as an anvil, LOL, he won't be too happy.

The dolly is something new to me. However, seems my best bet is to ask a welder to sell me a apiece of thick metal. I do have some business to do (other than the anvil) and will ask the guy for some of his scrap metal a few inches by a a few inches and then fix it to a piece of thick lumber.

Thanks for great suggestions.