I have an old pocket guide from 1988 that I still refer to, it has this one listed at £4 ^^ but I don't use it for the prices... it lists mintages and variations not covered in Spinks.
1950 saw 240,000 minted as mentioned but also 17,513 proofs (listed as less valuable than Unc regular issue)
1951 was 120,000 with 20,000 proofs. There were proofs for all George VI pennies except possibly 1947.
Also a number of variants to look out for such as 1945 doubled 9, 1937 reverses that point at teeth or between teeth, 1940 with single or double exergue line and 1944 where the waves touch exergue or not.
Anyway its one I have on my want list, I have a 1951 but no 1950. Congrats on this one :)