Antique Siebert Baby Stroller

I was driving home from work and i saw someone discarding this stroller so i asked if i can have it and they gave it to me. When i first saw it i thought i was really cool, when i saw the name on the wheels i said to myself sounds really familiar. Now i researched a little on the company Siebert and i was able to find out that they create the first strollers that the front tires move around. I also was able to find out that the siebert company also made tricycles. Now i have tried to find out a little more into their strollers and i have not been able to retrieve any information on it.

I would like to more about the company and if there strollers have any value today?