Before this I knew enough to buy any in 22 rimfire (and 28 Ga) if I ever saw one, now I know about the 32-20. This also got my curiosity up and I started looking through catalogs -
Catalog #70 with Mar 5, 1936 price list - no 219 or 220
Catalog #71 (no price list to date it) - list only the 220
Catalog #72 with Jan 3, 1938 price list - has 219 and some combinations including Model 224 combination (25-20 & 12 Ga)
Catalog #73 with Jan 3, 1939 price list - adds 220P and 219 in 32-20 and 22 Hornet but drops the listing of the 224 combination (noted that combinations for 25-20 & 32-20 were special order for $3.25 more)
Catalogs #74 & #75 are the same as #73 but with price increases
Catalog #76 with Jan 2, 1942 price list - adds more combinations -
The 219 shows up again in the 1948 catalog but is only listed in 30-30 and 22 Hornet and not combinations.
The 1949 catalog does not have either the 219 or the 220, the 220 shows up again in the 1953 catalog, the 219 in 1959, grooved receivers on other guns started sometime in 1954.