thanks everybody...Nana, dont really know yet...they were in a box of old pipe fittings in the basement...my dad tore down my grandmas house ,to make way for a navigational dam on the ohio river in the 60s and these were prob from that house...my grandfather was a pilot on the river so these keys were probably from him,...[i got a picture of his boat round here sumplace] these are oldies so i guess ill try and do a little research...lolol ...yeah that folding key caught my eye.too