These are the bells I refer to in my memoir, Spades of Determination.
We were searching for a way for me to call the nurses, seeing as I could only move my left big toe, so pressing the buzzer was out! Man, that buzzer! Nurses must hear it in their sleep! Alas, I still wasn’t strong or fast enough to use my toe to ring the bell.
My friends did a nice paint-job, eh?