Yeppp.....those things were " EL CHEAPO" when new.......your right, they are about 30 years old at least , if not more. But really they did work and got you in the ball park of a said yardage. It's good when your hunting a new spot that you have never been too before.....and instead of tramping around walking around spooking everything to get some yardage guesstamations,this will fit the bill. Darn, I can't afforf one of these new rangefinders.....those are for the guy who has everything including the $$$$$.
Any who.....I got the range finder off of ebay for $1.99 bid....plus a lil shipping......can't beat dat!!!! I'm grin 'n.
BOB