That is actually the 1970 Version of the D.C. DMV Office of Traffic Safety Set.
The pink version was the first version printed. After that, they were printed on a yellow card stock. There are two versions of the 1970 Yellow Set. One with Dave Nelson and one with Aurelio Rodriguez who replaced Dave Nelson after he was traded in 1970.
The uncut pink set I have was a grail find for me (Senators Fan here). And I purchased it from a gentleman who is a member on this site.
Here is the link
https://www.net54baseball.com/showth...highlight=pink
And here is the write up in the Vintage Baseball Catalog 6th Edition.
Note: I am of the personal opinion that the Dave Nelson card, while a short print is not as short of a short print than the Aurelio Rodriguez card is. My reasoning for this is Dave was in the first and second printings and Aurelio came later. I believe the Aurelio Yellow version is a more scarce version as a result of the later printings.
I am interested in the individual cards just so you know.
Congrats!!
Butch