Nice unusual find. Food pushers were used to help young eaters learning to feed themselves to push food onto their forks. I guess the idea was that it was easier than using a knife for that purpose. Sterling infant spoons are more commonly seen. I bought a dozen sterling Reed & Barton infant spoons from the factory store 25 or so years ago when silver was cheap as gifts for best friends having babies. Just gave the last one this summer to our first grandson!
Good forum suggestion also by DeepseekerADS.