[Pudwoppa]

Sorry - forgot to answer the original post.

I'm unaware of any tools made by Riley. A photo would be really handy. I think it's more likely to be something sport related that's either too damaged to identify or has been modified for use, although that's a guess without a photo.

The date of 1917 could be telling though - perhaps they manufactured items for the war effort for a period? Although I've never heard of it if that's the case.