For the washing machine?
foot roller?
Could be…but then I would think it has no spikes at the ends? And for the washer I would presume it was a round object instead of this shape.
Help us out @Collins 
It’s my dog’s favorite squeaky chew toy.
I honestly found things looking JUST LIKE THIS in my friend’s laundry room - for the washer!
I have a thing like that to put in my dryer to make the towels soft 
But I understand that this one was a dog toy 
It may be their dryer, not their washer. How do I know? I am maniacal about laundry and in my possibly OCD manner, don’t use anything out of my ordinary. 
Wow! Antique for sure…
Definitely not mine, but in the home that’s giving me a roof. They have all kinds of things, often handed down through the family. This was “born” in the same year as my sister. 
I hope you don’t tell your sister I called her an antique… lol
