I've seen this on razors I have owned in the past. The ones I had marked with 'fine india steel' were late 19th century English made blades. For Example there are a number of Wade and Butcher blades engraved with 'fine india steel'. My research in the past makes me think it was a marketing thing. I couldn't tell much difference honing and shaving with fine india steel. Of course they were all good blades.