these were my mothers. She got them in the 50s. I had them restrung years back. The original clasp was a bar w/3 pearls on it. I never got it back supposedly they lost it. Does anyone know what type of pearls they are? They came in the brocade box
You have an older strand of graduated akoya pearls. Pearl strands in this style are referred to as 3.5 momme strands, as each strand weighs about 3.5 momme (1 momme = 3.75 grams)