hi,i am having trouble finding what model petrol lawnmower i have?

i have what i think is an old suffolk petrol mower,i took it to be serviced but the fellow who looked at it was not sure because of the age,i need to get the model name because i need points and condenser for it,he seems to think its between 50 and 60 years old,does anyone know where i can look up any old pictures to find out what model it is.thanks