1952 Mint Set

The ICCS Population Report would suggest otherwise.

I have a 1951 cent in a ICCS holder, graded PL-63 Red. It is an older style flip, with the embossed certificate.

That said, I know it is a misattributed specimen strike. I even showed it to Brian Cornwell recently, and he admitted that it was "probably a specimen"... I keep it in the old PL flip, more as a novelty item. It just goes to show that when it comes to your collecting series, learn the strikes and trust your eyes, more than population reports.

An SP labelled PL is annoying. But, that implies there could be PL labelled SP too!

1951 and 1952 sets came with or without the white cardboard holders .
Sometimes the sets came just in cello pouches in a small box. A very similar
Style to the 1950 to 1955 Boxed US proof sets . The coins were held together in the lined box
With a single staple .
The cardboard 1951 & 1952 sets generally came in the same style as the 1953 to 1960 RCM sets but WITH 2 Diagonal STAPLES that appeared
on the left side of the card . Some sets DID NOT have the staples.
A search of the internet will find some pix of the sets in question.
Most , but NOT ALL of the coins found in the sets of the early 1951 to 1953 period are pleasing business strikes , with the odd piece being PL quality .