Lowest octave F, A-model, loop end, double wound.  Winding length is optimized for Oscar Schmidt OS73 models. (See Details section for more info on A-model strings.)

Replacing a grommet-end string?  These loop-end strings work fine, just as strong.

NOTE:  Oscar Schmidt no longer provides single Autoharp strings.  We are replacing them with Schreiber strings - handmade in USA!