toe loops

[Laura Dickerson]

   See the top illustration in this facsimile article (originally from 
1895):
http://www.digitalhistoryproject.com/2011/08/restoration-of-christ-church-bells.html

How common were the toe straps one can see on the floor?  I guess the 
related question is how common was overpulling :-)
Thanks for any information.
Laura Dickerson