Canadian Die Variety Mintage Estimates

Has any collector here researched possible mintages on various die varieties? As Charlton's and other sources typically list total mintages for any given year, it's rather hard to calculate mintages for specific varieties.

However, I found one online source that provides die usage figures from RCM mint reports.

For example, consider the 1953 NSF "large date" 50c. For 1953, there were a total of 2.6M 50c pieces struck, using 93 obverse dies and 66 reverse dies, and per die pair there were 33,299 coins struck. So the real question is--how many large date reverse dies were made? Given the different date positions for the same year on 50c pieces of this era, I'll guess the date is added at the master die stage. I'll gather that only by doing a detailed analysis of 1953 large dates, one could determine the number of dies used--and the total population of this variety. Most likely, it is a multiple of the 32,999 figure.

In contrast, we can easily calculate the population of the Newfoundland 1940 1c variety that used a re-engraved die. For 1940, the total cent production is given as 300,000. And, since (6) 1c die pairs were used for 1940, the total population of this variety is 300,000/6 or 50,000 coins, which makes it rather key coin!