My nephew just picked this up at a flea market.  What length it it?

Probably 58" I bought one just like it in a right hand model new in 76 and a spring arm quiver.Cant remember if mine was labeled with a sticker or not but dont think it was any longer. It too was 45#

AMO length 58" with brown limbs; the target limbs were white, if I recall, at 64" amo.
The missing slip-on grips were labelled 1,2, or 3 for low, med, high.  My 50# limbs pull ~ 45# at 28", likes a 55" string and braces about 7.5", are twisted, and gives me an excuse when I miss a carp.        

Thanks guys!

I killed a turkey with one 3 years ago, very capable bow for the money they cost, had one exactly like that one in the picture when I was a kid, threw it out because the fiberglass was splintering at the limb butts, wish I had kept it now, bought a couple more the last few years and I hope to take a deer with one of them one of these days! Good bowfishing rig too!