I hated the dolch "vintage" blues, especially with a stainless steel plate installed and replaced them with modern ones. They felt a little "softer" and with more of a muted click.
anyway, really old dolch used cherry black (and had different keycap colour), the really common dolch pac64 and 65 used blue, and modern dolch used either Ml or RD, I forget which. Yours s cherry, just looking at the-shape of the keycaps as has bene said.