Compare:
https://en.numista.com/catalogue/pieces5407.html
http://www.ngccoin.com/price-guide/world/dominican-republic-25-centavos-km-20a2-1974-cuid-14338-duid-47519
Any reason the 1974 proof should be absent from our catalog?
I own the coin, and it's in 2012 SCWC p. 692
MINTAGE 500!!!