Binoculars

I was told these binoculars were from World War I but I haven’t verified this. Not able to find any markings on them. I have seen some being sold that look similar and are binoculars used in the wars but I have also seen some marine binoculars that look similar. They still work good and I’m pretty certain they are at the least vintage and possibly antique .they are approximately 5 inches wide at the bottom and 6 inches high