Has any body used or know of anyone who has used the Round Blade Knife No.70 from osborne & co? if so is it a good blade to use?

Or do you know an alternative round blade which is small 4.5 - 5" in width? preferably from the uk or a European supplier?
Thanks in advance.

i bought something lately which is a copy of a leather wranglers knife from etsy. came very sharp, although a bit small, and i keep catching the blade on the back edge, so need a constant supply of plasters. hopefully get used to it soon. here is a link so you can see what it is. they say they are carbon steel, i guess if you ask he may explain more. https://www.etsy.com/uk/listing/799682501/custom-round-knifeaxe-knife-for-leather?ref=shop_home_active_4&crt=1
i have bought a few knives off them, and they are all really nice. taken with a pattern knife they have on there, so might have to buy one, although i have too many knives, an expensive habit.