I agree with lucky13's reponse to your regarding the diff of #1 vs. #2 cast iron bells; regarding size, plus looking for your bell were you can examine it.
We have a #2 older cast iron; mounted by our country home back door, it's used for calling in us for meal time or some one has come to visit, plus ringing out the old year and ringing in the new year. Was found at a flea market rusty but with sanding and spray paint it looks great. When we found one at an estate auction; purchased it for a gift to our daughter & son-in-law who have a lake side home, they use there's also.
According to a Sears, Roebuck & Co catalog from 1897; their #1 bell was 15" & weighted 40lbs w/hangings, cost $0.94 each. #2 bell was 17" d, weighted 50lbs, sold for $1.20. While a #3 bell was 19"d, weighted 75lbs,coast $1.65. #4 had a 21"d, weighted 100lbs, cost $2.40. Is'nt that amazing to us!!!
Ardis Copple, MN Chapter ABA