Did tomato paste come in only one size of can in the 1950s? I found an old cookery book while on holiday at the german coast, it was published by Peter Pauper press, Mt. Vernon, New York in 1959.

All recipes that use tomato paste just say "1/2 can tomato paste (italian style)" without giving any weights or other measurements.

So, did tomato paste only come in one size in the 1950s? If so, which size was it? And would "italian style" denote anything special like it containing herbs or anything like it?

(I'd like to try some of the recipes at some point, but currently I've got no idea how much to use and if it should be anything other than plain tomato paste...)
From: http://www.ellenskitchen.com/pantry/cansize.html


  Can sizes change over time, important if you are adapting an older
  recipe. Prior to 1980's), #303 was the popular size for most fruits
  and vegetables.;
  
  No. 303 = 16-17 oz.(1 lb.-1 lb.-1 oz.) = 2 cups = 4 servings;     
  
  Principal size for fruits and vegetables.  Also some meat products,
  ready-to-serve soups, specialties.


Tomato paste has, as far as I know, always come in size 1/2 (6 ounce) cans, at least since I began using it, starting in the mid 1960s.

Think this is what you are looking for.

There are lots of information bits on line, search; 'can sizes'.

cheers