It is always interesting to pick up used binoculars in their original cases including the sales slips. One Bushnell Rangemaster 7x35 in my collection (the Fuji made silver ring one which Fan Tao prefers), which I have found the best of any 7x35 wide angle I have looked through was sold in Denver, Colorado in 1963 for $153.90. That was 52 years ago, and I think it is a reasonable inference to make that it may have been made in the late 1950s or a few years later. The serial # is 315066
Using the annual inflation indicator at 4.01 %, that would cost close to $1,200 today new. Nothing in that price range today comes even close to its wide FOV(525 feet), huge sweet spot, quality mechanics, and comfortable viewing, Its view is as natural a one that could be expected.
If the reader believes I am exaggerating, find someone who has one and try to buy it from him, A few collectors buy everyone they can find. One fellow I am told has over 30 pairs, which makes little sense to me since he may some day have a heart attack and the Rangemasters will find themselves in pawn shops collecting dust, or worse being used by "knuckle draggers" who don't understand what they have and use their shirt tails to grind away the coatings.
I am surprised that the alpha manufacturers have not resurrected this model, since no patents are still around to hinder production. Remember, you optical snobs, imitation is the sincerest form of flattery, even with binoculars.